Our company, Suzhou Asia Pacific Metal Co., Ltd, is one of the largest involute cylindrical gears in china. And we specialize in huge heavy-duty gears, including spur gear, helical gear , double-helical gear, gear ring gear shaft and so on . Range and capabilities of the products are as follows: （1）Model: involute cylindrical gear （2）Diameter pitch: 0.635 to 3 （3）Module: 8 to 40 （4）Diameter: 200 to 3200mm （5）Ground tooth: AGMA Q13 （6）Standard: AGMA, ISO, DIN, JIS （7）Material: according to customer&＃039;s drawing （8）Equipment: Germany NILES CNC (4SETS) and HOFLER RAPID800(2SETS) gear grinding machines, first-class international heat treatment equipment(7 SETS)and advanced mechanical processing and test equipment.