Shenyang Hanwei Machinery Manufacturing Co., Ltd is an important backbone in northeast China heavy machinery enterprises, it is situated in state-level development zone with a reputation of "the cradle of Chinese heavy industry"--Shenyang economic and technology development zone. With good company strength, it can provide all kinds of forging blank, casting blank's manufacture and machinery, it provides to manufacture large gear ring and precision hard tooth surface gear products, through rapid development in recent years, it has formed a complete set of management system from raw material to finished product processing and testing. In machinery and manufacture department, we have imported from Germany a large CNC molding gear grinding machine with the largest machinery diameter in 5m, and also 7 sets of 8m hobbing machine, they form into a beautiful rainbow scene view in global large gear manufacture: 30 tons of arc cast steel furnace is pouring out pretty fine casting, 6000 tons of hydraulic press is rolling out high-quality forging pieces, heat treatment furnace in full computer control ensures products strength and tenacity, and big CMM measure gives a quality warranty.