1, ISO9001:2008 CERTIFIED. 2, Different kinds of gears, worm gears,Module ... , 40Cr. 42CrMo. GG25,316L. 1, ISO9001:2008 CERTIFIED.2, Different kinds of gears, worm gears3, Standard and non- ... , material handling, multi-spindle drives, roller feeds etc.2) Adopts optimal design and shot treatment to decrease noise and ... quality & best service & timely shipments12) Accept trial order OEM Sprocket Wheel Gear