Muffler of miner

New continent a (000571, 5.83, 0.87%) shares in AVIC new continent Aviation Manufacturing Co., Ltd., and its large aircraft engine parts are leap engine parts, which are mainly used for Boeing 737max, Airbus a320neo, C919 and other models

AVIC Technology (600391, 22.20, 0.50%) aircraft manufacturing companies are mainly engaged in the main parts of aero-engine and gas turbine; Participate in the development of some parts of C919 engine

aero engine manufacturers (600893, 27.52, 0.40%) participated in the domestic engine being developed by C919

in the morning of February 18, the concept stocks of engine rose sharply, with the trading limits of three stocks of aeroengine control (000738), aeroengine Technology (600391) and aeroengine power (600893). The shares of Steel Research Gaona (300034) surged by more than 8%, Weifu Gaoke (000581) rose by more than 3%, and Zongshen power (001696), Weichai heavy machinery (000880), furuite equipment (300228) also rose slightly

Gangyan Gaona (300034): Gangyan Gaona achieved a total operating revenue of 680 million in the first half of 2019, with a year-on-year growth of 95.6%; The net profit attributable to the parent company was 86.292 million, a year-on-year increase of more than 86%. During the reporting period, the gross profit rate of the company was 33.1%, increased by 5.2 percentage points year on year, and the net profit rate was 15.6%, increased by 1.5 percentage points year on year