Scraper of Shandong mining machinery
The company is mainly engaged in coal equipment manufacturing business. Its procts include various types of light, medium and heavy scraper conveyor, single hydraulic prop, hydraulic support, belt conveyor and complete sets of sand washing equipment for fully mechanized mining. The company can design and proce the above procts that meet the safety requirements for coal mines with different instrial and mining conditions, And to provide customers with complete sets of coal mining face equipment selection and design services
the company fully seized the great opportunity of the rapid development of the coal instry and the structural adjustment of the coal instry, made use of its own core technology advantages, and actively innovated and developed. From 2002 to 2008, through three large-scale proct structure optimization, the company graally completed the upgrading of proct structure from general mining, high span general mining to fully mechanized mining complete sets of equipment, Established a leading position in the coal equipment manufacturing instry. In particular, since 2008, the company has independently developed a complete set of equipment for fully mechanized mining of thin coal seam and a complete set of equipment for fine coal separation and dehydration, with technology at the leading level in China, and successfully entered the field of thin coal seam mining and fine coal washing. In 2009, the company entered the top ten coal machinery manufacturing enterprises in China. Among the top ten coal machinery manufacturing enterprises in China, the company's sales revenue ranked tenth, operating profit ranked fifth and operating profit rate ranked third
the company has 27 self-developed patents and 8 accepted patent applications. All procts of the company have coal mine safety mark certificates issued by the State Administration of work safety
the company was awarded the title of "national excellent enterprise in coal machinery instry" by China Coal Machinery Instry Association in 2005, "500 growing small and medium-sized enterprises in China" by China Enterprise Evaluation Association in 2005, "double top ten enterprises" by China Coal Machinery Instry Association in 2007, and 87th among "top 100 coal enterprises in 2009" in 2010, From 2005 to 2009, it was listed in the "list of the most potential enterprises in China" by Forbes magazine for five consecutive times
founded in 1955, Shandong mining machinery group has five holding subsidiaries, including Beijing sankuangtong Technology Co., Ltd., Xinjiang Changmei Mining Machinery Co., Ltd., Shandong mining machinery Laiwu Coal Machinery Co., Ltd., Weifang Keer building materials Machinery Co., Ltd. and Shandong mining machinery Maike building materials Machinery Co., Ltd., with total assets of 2.845 billion yuan, covering an area of more than 1000 mu and more than 2000 employees, It was listed on Shenzhen Stock Exchange on December 17, 2010 (Stock Code: sz002526)
as one of the top ten coal machinery manufacturing enterprises in China, the enterprise is in the leading position in terms of scale, market share and proct technology level. The main procts of the company are hydraulic support, scraper conveyor, transfer machine, crusher, belt conveyor, shearer, digger, single hydraulic prop, jack, engineering oil cylinder, metal top beam, etc Ring chain and the introction of Germany, Italy's advanced technology to proce complete sets of coal gangue, shale hollow brick brick making equipment, complete sets of coal washing equipment
the enterprise has obtained ISO9001:2008 standard quality management system certification and is recognized as a high-tech enterprise. It is Shandong coal machinery engineering technology research center and a designated manufacturer of support procts, mechanical and electrical procts and accessories for China's coal instry. It also has the right of self import and export. All the leading procts have the coal mine safety mark certificate issued by the State Administration of work safety, It has won the honorary titles of AAA credit enterprise of China Coal Instry Association, excellent enterprise of national coal machinery instry, double top ten enterprise of national coal machinery instry, 500 growing small and medium-sized enterprises in China and growing small and medium-sized enterprises in Shandong Province. It has been selected into the top 100 and top 50 of China's coal instry for three consecutive years, and has been listed in the list of China's potential enterprises published by Forbes for five consecutive years. The procts have been recognized as the national coal mine mechanical and electrical procts, among which the Le coal brand scraper conveyor and single hydraulic prop procts have won the title of Shandong famous brand, and the Le coal brand trademark has been recognized as a famous trademark in Shandong Province
the rapid development of Shandong mining machinery group is e to a high-quality and strong technical staff team and a leadership team that dares to innovate and concentrate. The main management personnel of the company continue to work in the company and most of them are shareholders, which ensures the long-term stable development and sustainable competitiveness of the company. Mr. Zhao Duxue, chairman of the board of directors, was once a deputy to the Seventh National People's Congress and the 15th Weifang people's Congress. He also served as vice chairman of the Fifth Council of China Coal Machinery Instry Association, vice chairman of support branch of China Coal Logistics Association, and vice chairman of Shandong Private Entrepreneurs Association. And won the honorary titles of China's coal instry, excellent entrepreneurs of China's coal machinery instry, double top ten entrepreneurs of China's coal machinery instry, Shandong provincial and municipal labor models, influential figures in Shandong Province, excellent managers of Shandong Province, etc
the company focuses on users, takes user satisfaction as the ultimate goal, provides zero distance whole process service, takes responsibility to forever as the purpose, and achieves in-depth pre-sales communication, optimized design and perfection; Strict requirements, quality guarantee period and commitment are required ring the sale; After sales always pay attention, respond quickly and ensure operation. There are 26 service outlets nationwide, forming a perfect service system
Shandong mining machinery group adheres to the business philosophy of honesty, customer first, innovation and improvement, quality first, and is willing to cooperate with friends at home and abroad for common development<
legal representative: Zhao Huatao
date of establishment: December 3, 1999
registered capital: RMB 1782793836
region: Shandong Province
unified social credit Code: 91370700165760323c
business status: in business enterprise
instry: manufacturing instry
Company type: joint stock limited company (listed)
English Name: Shandong mining Ma China Group Co., Ltd.
staff size: 1000-4999 people
business address: North Section of Dayi Road, Changle Economic Development Zone
scope of business: proction, sales and maintenance of coal mining machinery, general machinery, ring chain, hardware rigging, light and small lifting and transportation equipment, building materials machinery, new building materials, steel mold of cement procts (the term of validity is subject to the license). Equipment installation and coal sales; Import and export of related goods and technologies; Mining technology services; Equipment leasing and related technical services; Laser processing equipment, instrial robot equipment proction and sales; Surface composite material preparation and laser processing services; Aluminum bars, instrial profiles, building profiles sales Projects that need to be approved according to law can be operated only after being approved by relevant departments.)
Sprocket assembly is composed of sprocket and connecting roller. It is an important part of scraper conveyor, and it is also the most torque part of conveyor. Therefore, in the process of purchasing sprocket shaft group, many problems should be considered, and we must be very careful. Only in this way can we choose high-quality sprocket shaft group, prolong the service life of sprocket shaft group, and improve work efficiency, otherwise, In the use of the process is prone to accidents, resulting in labor and money, so what should be paid attention to in the process of purchasing sprocket shaft group? What is the price of sprocket shaft group
what problems should be paid attention to in the process of purchasing sprocket shaft group:
with the development of coal machinery and the national rectification and merger of small and medium-sized coal mines, large-scale fully mechanized mining equipment is more and more widely used in coal mines With the development of heavy-ty scraper conveyor, there are more and more types of scraper conveyor, and the models proced by major coal machine manufacturers are also different. As the main vulnerable parts of scraper conveyor, sprocket shaft group is not universal, which makes it difficult to determine when purchasing. So what problems should be paid attention to when purchasing sprocket shaft group? We summarize the following aspects
First, the main engine manufacturer of sprocket shaft group. As there are many manufacturers of scraper conveyor, the sprocket shaft group of each manufacturer can not be used in general, so when purchasing, we must first determine which manufacturer of scraper conveyor is suitable for sprocket shaft group. At present, the most important domestic scraper conveyor manufacturers are China Coal Zhangjiakou coal machinery plant, Ningxia Tiandi Benniu, Shandong mining machinery, Shanxi coal machinery plant and Zheng coal machinery Second, the determination of drawing number of sprocket shaft group. Even for the same scraper conveyor manufacturer, the sprocket shaft group applicable to the same scraper conveyor model may not be the same. Therefore, it is necessary to determine the drawing number of the sprocket shaft group. Each sprocket shaft group has only one set of drawings. As long as you find the drawing number of the sprocket shaft group and have the corresponding drawings, you can ensure that the sprocket shaft group proced will not make mistakes Third, the material selection of sprocket shaft group. Due to the increasing power and transportation volume of scraper conveyor, there are great requirements for the toughness and strength of sprocket shaft group. If the material selection is not appropriate, the sprocket shaft group will be prone to accidents in the use process, affecting the proction progress, and even safety accidents. At present, the commonly used materials are 42CrMo and 45crnimnmu. When selecting, the appropriate materials should be selected according to the transportation volume Fourthly, the manufacturing process of sprocket shaft group. Due to the high requirements for the toughness and strength of the sprocket shaft group, the manufacturing process can not be careless. At present, the manufacturing process of the sprocket shaft group mainly includes forging, casting and welding. Small ordinary mining scraper conveyor can choose casting and welding sprocket shaft group. For large fully mechanized sprocket shaft group, in order to ensure its performance requirements, only forging sprocket shaft group can be selected, and heat treatment, quenching and tempering and other processes can be carried out
when purchasing the sprocket shaft group, we should pay attention to the above aspects. Basically, the sprocket shaft group can basically meet the performance required by the current scraper conveyor, but there is another point to pay attention to, that is, when the scraper conveyor is running, we must pay attention to the wear of the sprocket shaft group at any time to avoid accidents
Jinan Xinqiao Mining machinery plant supply chain wheel shaft group
starting batch: 1 piece
price: ￥ 26000
Henan Guanglian Electromechanical Technology Co., Ltd. supply chain wheel 40t630 / 320 forging parts of scraper for mining
starting batch: 1 piece
price: ￥ 10000
Luoyang Yuanjian mining equipment Co., Ltd 0 / 06ll sprocket shaft group Zhangjiakou coal machinery scraper series sprocket shaft group sprocket assembly manufacturer
starting batch: 1 piece
price: ￥ 88000
the above is about the problems that should be paid attention to in the process of purchasing sprocket shaft group and the price introction of sprocket shaft group manufacturer, In the purchase of sprocket shaft group must be very careful, understand all the situation before making a decision, and in the purchase can not be greedy for small cheap Oh, to buy high-quality procts is the king. At the same time, when using the sprocket shaft group, you should often check the wear of the sprocket shaft group and take preventive measures to avoid accidents. I hope the above contents can help you
most sprocket quenching methods are high frequency quenching. But this kind of quenching is more troublesome, need a tooth a tooth quenching, relatively slow; Even worse, the hardness gradient of quenching is not suitable. Gears are easily damaged
the better quenching method is flame quenching, and the hardness gradient of flame quenching is the most ideal. But the difficulties are uniformity and speed. To solve this problem, we need to use CNC and automatic quenching equipment
the automation equipment has been used in Shanxi coal machinery and Shandong mining machinery. The effect is quite good, which can completely replace the similar imported equipment from Germany
please look at the video file and search for the video "automatic NC flame quenching machine tool" on the Internet.
Mr. Zhao Duxue, chairman of the company, was once a deputy to the Seventh National People's Congress and the 15th people's Congress of Weifang City. He also served as "vice president of the Fifth Council of China Coal Machinery Instry Association", "vice president of support branch of China Coal Logistics Association" and "vice president of Shandong Private Entrepreneurs Association". He has also won the honorary titles of "excellent entrepreneur" in China's coal instry and China's coal machinery instry, "double top ten entrepreneurs in China's coal machinery instry", "Shandong provincial and municipal labor model", "influential figure in Shandong Province" and "excellent manager in Shandong Province". The enterprise has obtained ISO9001:2008 standard quality management system certification. It is a high-tech enterprise in Shandong Province, and has the right of self import and export. All its leading procts have the coal mine safety mark certificate issued by the State Administration of work safety. It has been awarded "AAA credit enterprise of China Coal Instry Association", "excellent enterprise of national coal machinery instry", "double top ten enterprise of national coal machinery instry" and "double top ten enterprise of national coal machinery instry" "Shandong growing small and medium-sized enterprises" and "China's 500 growing small and medium-sized enterprises" awarded by China Enterprise Evaluation Association have been selected as "China's top 100 coal instry" and "China's top 50 coal machinery" for three consecutive years, and have been listed in "China's potential enterprises list" published by Forbes for five consecutive years, The procts have been recognized as "national coal mine electromechanical procts", among which the scraper conveyor and single hydraulic prop procts of Lemei brand have won the title of "Shandong famous brand", and the trademark of Lemei brand has been recognized as "Shandong famous brand"
class II Enterprises: 1 Huainan Changbi (now affiliated to the largest coal mining equipment proction and processing company in the world, which will be developed in the future) is the only one that exports from developing countries to developed countries. Good at high-grade general mining and fully mechanized mining of thin and medium thick coal seam. 2 Jilin Jiaohe 3 Shandong mining machinery Co., Ltd.
in the other three types of enterprises. I use Jixi's shearer and longwall's chute, and the effect is very good, mainly because I am very responsible for after-sales service.
I. Introction to the basic situation
since 2000, the rapid growth of coal demand has driven the unprecedented prosperity of coal mining instry, and the coal equipment instry and service instry, which directly provide services for coal mining, processing and utilization, have also entered the fastest development stage in history, because of the scale of coal proction, coal output, coal consumption, and so on The rapid growth of processing quantity, processing depth and mining difficulty has put forward an urgent demand for coal equipment instry and service instry. The significant improvement of financial indicators such as sales revenue and net profit of coal enterprises has greatly enhanced their ability to purchase new equipment. Therefore, the rising demand fundamentally determines that 2006-2010 is the golden period for the development of coal equipment instry<
II. Market scale of China's coal machinery
1. Total output value of China's coal machinery
Table 1: total output value of China's coal machinery
year 2003 2004 2005 2006 2007 2008
total output value (10000 yuan) 1041078 1182871 2111629 2899786 4960896 5798819
2 Domestic coal machine market scale
Table 2 coal machine market scale
year 2003 2004 2005 2006 2008 2009
(forecast) 2 2010
(forecast) 2
coal machine output
roadheader 236 497 700 656 972 1343 1477 1510
shearer 253 274 500 596 546 661 723 796
scraper conveyor 3539 4944 5323 3915 4872 4236 5540 6648
hydraulic support 10181 17872 21312 29871 40660 46998 52970 55368
total consumption of coal machine
roadheader 236 497 700 656 972 1343 1477 1510
shearer 253 274 500 596 546 661 723 796
scraper conveyor 3539 4944 5323 3915 4872 4236 5540 6648
hydraulic support 10181 17872 21312 29871 40660 46998 52970 55368
sales amount of coal machine (ten thousand yuan)
roadheader 35400 84490 126000 124640 184680 255170 280630 286900
shearer 101200 123300 237500 298000 300300 363550 397650 437800
scraper conveyor 60163 103824 159690 195750 243600 211800 277000 332400
hydraulic support 142534 268080 447552 746775 935180 1080954 1218310 1273464
at present, domestic coal mines mainly use domestic coal mine machinery and equipment, because of competitive price, low cost, low cost and low cost Continuous improvement of quality and technical level and timely service
3. Proportion of imported procts
Table 3 proportion of imported procts in China
2003 2004 2005 2007 2008
proportion of imported procts in total domestic coal machinery 2.6% 2.8% 2.2% 2.3% 2.7% 3%
4 Comparison of main coal equipment at home and abroad
Table 4 Comparison of main coal equipment at home and abroad
origin price equipment capacity (ten thousand tons / year) service life of shearer / scraper (ten thousand tons) service life of hydraulic support (ten thousand tons) automation degree
domestic low 200-500-800 1000-1500 low reliability
manual operation
import is generally more than two times of domestic Relatively weak, 2000-2500-3000 has high reliability
high degree of automation
from the perspective of instrial structure, domestic coal equipment enterprises are generally small in scale and scattered in layout, which means that superior enterprises will have greater comparative advantages in integrating the market, building supporting system, formulating instry standards, etc., and will be easier to stand out, And then grow into a coal equipment giant
from the perspective of equipment level, domestic coal equipment lags behind the international advanced level, and the indicators of equipment reliability, intelligence and informatization are obviously on the low side. However, in the past few years, domestic coal equipment has been continuously improved, and breakthroughs have been made in equipment manufacturing research and development, design and manufacturing
as a big coal country, the gap between domestic high-end coal mining machinery and foreign advanced level is narrowing in recent years, and the market share of domestic procts is also expanding. For example, the domestic hydraulic support market has a total market volume of 2 billion to 3 billion every year, of which the number of imported mechanical equipment is a relatively small part, and the vast majority are domestic equipment
the cost advantage provides domestic coal machinery manufacturers with strong competitiveness in the market. The average price is half cheaper than imported equipment, which is the reason why domestic coal machinery manufacturers can get sufficient orders in China. At the same time, China's coal machinery procts and manufacturers also have certain advantages over similar international companies in providing high-quality and perfect after-sales service, in-depth and detailed understanding of local customers' needs, and in the price and sales of accessories< br />5、 Ranking of domestic roadheader manufacturers
Table 5 ranking of domestic roadheader manufacturers (sales volume: sets)
serial number manufacturers 2004 2005 2006 2007 2008
1 Sany Heavy Equipment Co., Ltd. 1 16 62 283 366
2 Jiamusi Coal Mining Machinery Co., Ltd. 160 260 235 258 362
3 Taiyuan branch of General Coal Research Institute 120 206 197 202 218
4 Shijiazhuang Coal Mining Machinery Co., Ltd Shanghai chuangjian mining equipment Co., Ltd. - 15 74
6 Anshan Qiangli Heavy Instry Co., Ltd. - 8 13 28 58
6 Ranking of domestic shearer manufacturers
Table 6 ranking of domestic shearer manufacturers (sales volume: sets)
serial number manufacturers 2004 2005 2006 2007 2008
1 Jixi Coal Mining Machinery Co., Ltd. 109 135 138 124 179
2 Taiyuan Mining Machinery Group Co., Ltd. 48 62 81 115 114
3 Xi'an Coal Mining Machinery Plant 39 65 89 104 92
4 Wuxi Shengda Machinery Co., Ltd. 79 79 70 73 87
5 Shanghai founding mining equipment Co., Ltd. - 50 70
6 Liaoyuan Coal Mining Machinery Manufacturing Co., Ltd. 35 29 33 42 49
7 Domestic scraper conveyor manufacturers ranking
Table 7 domestic scraper conveyor manufacturers ranking (sales volume: sets)
serial number manufacturers 2004 2005 2006 2007 2008
1 China Coal Zhangjiakou Coal Mining Machinery Co., Ltd. 435 351 335 361 309
2 Shanxi Coal Mining Machinery Manufacturing Co., Ltd. 160 163 130 159 185
3 northwest Benniu Instrial Group Co., Ltd. 226 166 157 172 15 2
4 Jilin Jiaohe Coal Machinery Manufacturing Co., Ltd. 38 168 189 189 149
5 Yankuang Group continental Machinery Co., Ltd. 76 108 171 114 148
6 Shanxi Xinzhou General Machinery Co., Ltd. 44 83 86 55 76
8 Ranking of domestic hydraulic support manufacturers
Table 8 ranking of domestic hydraulic support manufacturers (sales volume: frame)
serial number manufacturers 2004 2005 2006 2007 2008
1 Zhengzhou Coal Mining Machinery Group Co., Ltd. 4176 5440 6803 6882 10584
2 Pingdingshan Coal Mining Machinery Co., Ltd. 1598 3020 3827 3888 5213
3 Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. - 3256 42 23
4 China Coal Beijing Coal Mining Machinery Co., Ltd. 2687 3045 3578 4083 3632
5 Shanxi Pingyang Heavy Instry Machinery Co., Ltd. 1250 2228 2470 2331 2470
6 Chongqing Dajiang Xinda Vehicle Co., Ltd. 2078 2424 2788 2699 2179
9 Domestic mine transport vehicle manufacturers ranking
Table 9 domestic mine transport vehicle manufacturers ranking (sales volume: vehicles)
serial number manufacturers 2004 2005 2006 2007 2008
1 Liupanshui Coal Mine Machinery Plant 620 1370 1198 678 696
2 Xuzhou Coal Mine Machinery Plant 198 152 137 240 200
10 Comprehensive ranking of domestic coal machinery manufacturers
table 10 comprehensive ranking of domestic coal machinery manufacturers (10000 yuan)
serial number manufacturers 2004 2005 2006 2007 2008
1 Zhengzhou Coal Mining Machinery Group Co., Ltd. 65855 128260 203899 222444 372234
2 Zhangjiakou Coal Mining Machinery Co., Ltd. 72078 98300 128259 152298 169902
3 Beijing Coal Mining Machinery Co., Ltd. 44710 60526 92372 121850 147852
4 Sany Heavy Equipment Co., Ltd. 60009 134652
5 northwest Benniu Instrial Group Co., Ltd. 52512 72652 89207 98165 114012
6 Shandong Mining Machinery Group Co., Ltd. 45861 82498 89880 84709 104671
3. Comparison of major domestic coal machinery enterprises. The following is a list of major enterprise groups in the domestic coal machinery and equipment instry:
1. Sany Heavy Equipment Co., Ltd.
Sany Heavy Equipment Co., Ltd. (hereinafter referred to as "Sany Heavy Equipment") is a large equipment manufacturing enterprise invested by SANY group, specializing in the research, development, proction and sales of coal machinery and equipment, The main procts include: roadheader (comprehensive strength ranking first in the country; In 2008, TBM with capacity of 160 kW and below and TBM with capacity of 200 kW and above had about 50.8% and 54.4% market share respectively in China market; Ebz318h all Rock Roadheader has the highest performance level in China; The combined coal mining unit (including shearer, conveyor and hydraulic support) is in its infancy and has been proced in small batch; Complete sets of equipment for mine auxiliary vehicles; Mine concrete pump has been widely used in coal mines. At the same time, the company attaches great importance to the construction of test and detection system, and the test and detection center has reached the domestic professional test and detection level. Sany Heavy Equipment Co., Ltd. is the most potential enterprise in China's coal machinery instry< 2. China Coal Machinery Engineering Equipment Group Corporation ("CMEC")
the manufacturing enterprises under CMEC include Zhangjiakou Coal Mining Machinery Co., Ltd., Beijing coal mining machinery factory, Fengfeng metal support factory and Shanghai Mining Electrical Appliance Factory. CMEC is a group company established through the administrative subordination of state-owned enterprises. Xi'an Coal Mine Machinery Co., Ltd., Fushun Coal Mine Motor Manufacturing Co., Ltd. and Shijiazhuang Coal Mine Machinery Co., Ltd. are three enterprises, and Zhongzhuang Co., Ltd. holds 50% of the shares< In 1957, Shijiazhuang Coal Machinery Company moved from northeast to Shijiazhuang, covering an area of 420000 square meters. Now it has 2300 employees and more than 800 professionals. The company has a science and technology center, a Sino German joint venture, 7 branches, companies, 6 proction workshops, with more than 700 sets of main proction and testing equipment. It is a comprehensive mechanical and electrical procts manufacturing enterprise integrating proct design, processing, experiment and testing. The company's main procts are: coal mine underground auxiliary transportation equipment, underground support and tunneling equipment, engineering drilling equipment, truck mounted lifting truck, gear pump, hydraulic motor, high exchange heat element, electro-hydraulic hammer for metal forging, etc
3. Shanghai Tiandi Technology Co., Ltd.
Shanghai Tiandi Technology Co., Ltd. (China's second largest shearer manufacturer and a major scraper conveyor manufacturer) purchased northwest Benniu (China's second largest scraper conveyor manufacturer) and Taiyuan Coal Research Institute (China's second largest tunneling machine manufacturer), Now we are looking for a hydraulic support manufacturer to complete the general idea of complete sets of coal machine equipment. In the new proct development and promotion has obvious advantages, is a typical growth enterprise< br />4、 Comparison of major coal machinery enterprises
Table 11 comparison of major coal machinery enterprises
list of major enterprises in domestic coal machinery equipment instry in 2009
group name roadheader support shearer conveyor others
Sany Heavy Equipment Co., Ltd. Sany Heavy Equipment Co., Ltd. Sany Heavy Equipment Co., Ltd. Sany Heavy Equipment Co., Ltd. Sany Heavy Equipment Co., Ltd. Sany Heavy Equipment Co., Ltd Ltd.
International Coal Machinery Jiamusi Coal Mining Machinery Co., Ltd.
Zhengzhou Siwei Jixi Coal Mining Machinery Co., Ltd. Huainan Changbi
China Coal Group Equipment Co., Ltd., Shijiazhuang Coal Mining Machinery Co., Ltd., Beijing Coal Machinery Co., Ltd., Fengfeng metal support plant, Xi'an Coal Mining Machinery Co., Ltd., Zhangjiakou coal machinery Fushun Motor Co., Ltd., Shanghai mining electrical appliances Co., Ltd.
Taiyuan branch of General Coal Research Institute, Shanghai Tiandi Technology Shanghai Tiandi Technology Shanghai Tiandi technology, northwest Benniu