Second hand labor service center can go to identify
Send to buyer after inspection
if it is false, the freight shall be borne by the seller; if it is true, the freight shall be borne by the buyer
1. In the seller's auction payment, it is automatically calculated. You can also see how much you paid, and then dect the postage you paid
When the seller places an order for payment, advance payment will automatically calculate the postage, which does not mean that you need to send the express delivery fee, because the postage of different express delivery is different at the same destination
freight needs to be negotiated with the buyer. Before the buyer places an order, it is usually necessary to communicate with the buyer about which express delivery can be sent, who will pay for the express delivery fee, and whether to send or to pay. Of course, when releasing unused treasure, transportation costs need to be set. After negotiation, the buyer can place an order and deliver the goods in the agreed manner P>

extension:
mobile phone rules:
Xiang Yu members can log in using Taobao or Alipay accounts without passing through a complicated process of opening a store, which can achieve many functions, including a key resale of "buy baby" Taobao account, photo taking and uploading second-hand idle items on their mobile phones, and online transactions. p>
by downloading and using the new concept of "Xiang Yu" application, indivial sellers can obtain three advantages, such as greater exposure, more efficient circulation path and more favorable logistics price, which can make full use of the fastest speed of idle babies in the hands of new owners in the country. In addition, the back-end of Xianyu platform is seamlessly connected with Taobao credit payment system to ensure the security of transactions to the maximum extent
proction process:
1. Pour oil and water into the bottle, layer and then proceed to the next step
2. Add 1-2 drops of food pigment. When the pigment passes through the oil, you will find that the pigment and water mix evenly
3. Add effervescent tablets. At this time, the effervescent tablets disintegrate rapidly, procing a lot of carbon dioxide. At this time, a miracle appeared. The bubbles with pigment and water rushed to the surface of the water. It looked like a magma jet. It was very magical and interesting< Principle: effervescent tablets are usually a mixture of organic acids and sodium bicarbonate (bicarbonate); The effervescent tablet itself is dry without water, and the two substances in effervescent disintegrating agent cannot react without ionization; However, when the effervescent tablets are put into water, the organic acids and sodium bicarbonate are ionized under the action of water, and metathesis reaction occurs, resulting in a large amount of carbon dioxide, that is, bubbles. There is usually some water in the middle of the bubbles generated in the water, and there is pigment in the water, which proces the spectacle of magma jet.
Home made silver jewelry, such as making a silver bracelet, the weight of the silver bracelet is usually tens of grams, the amount of silver melting is not large, so it's very suitable to use a small smelting furnace. The maximum temperature of the small melting furnace is 1600 degrees, which has the characteristics of small volume and fast melting. The operation of small smelting furnace is simple. First, connect the power supply and cooling water pipe, put the crucible into the inction coil, add the silver block or silver particle to be melted, then turn on the power switch and adjust the temperature button. When the temperature of silver in the crucible reaches 960 ℃, it begins to melt, and the process from heating to complete melting is about 2 minutes. When the silver block is completely melted, turn off the power, clamp the crucible with crucible pliers and pour it into the prepared graphite tank. The silver in the graphite tank can be completely solidified after about 10 seconds. After solidification, the graphite tank should be quickly turned over with crucible pliers to pour out the silver bar, and then the silver bar should be completely immersed in water for quick cooling. After cooling, the silver strip can be rolled with a wire press and finally made into a bracelet. You can also make a ring according to your preference, or use a wire drawing machine to draw a thin thread to make a necklace. Baofeng jewelry small melting furnace is easy to use, in addition to melting silver, it can also melt gold, K gold, copper, brass and other metals, to meet the jewelry DIY lovers' proction fun

Zhenxiong County has formed a road network with the county as the center, provincial and county roads as the skeleton, and rural roads as the supplement. It has realized that the township (town) is connected with buses, and the village (neighborhood) committee is connected with roads
the construction of Yi Bi expressway is under intense construction, and the Zhenxiong station of Cheng Guiyang high speed railway will be set up here, and the external traffic will be greatly improved at that time
in 2007, the main indicators of transportation proction in Zhenxiong County grew steadily. Among them, the freight volume reached 1.079 million tons, an increase of 12.0% over 2006; Freight turnover reached 119.02 million ton kilometers, an increase of 12.0% over 2006; The passenger volume reached 4.326 million, an increase of 4.8% over 2006; Passenger transport turnover reached 459.3 million person kilometers, an increase of 4.9% over 2006. At the end of the year, the mileage of highways was 2329 km; There are 28115 vehicles in the county, including 646 big cars, 5842 small cars, 2948 tractors, 18288 motorcycles and 391 others

There are several reasons for spark ignition: improper operation (such as electrode ablation caused by improper parameter setting and ignition caused by short circuit), machine failure and use of inferior spark oil
In general, kerosene or EDM oil is used as the medium for EDM, and the instantaneous temperature is about 10000 ℃ ring EDM. At this time, if the workpiece is not completely immersed in the EDM oil, the oil vapor evaporated from the discharge will mix with the surrounding air, and will burn when encountering sparks During immersion discharge, if the EDM oil has no flow cycle, the temperature of the oil in the machining groove will graally increase. When the temperature rises to the ignition point of the oil, combustion will occur, leading to ignitionstone will not burn a house because most of the components of the house are combustible. Of course, it must reach a certain temperature, that is, ignition point
