... of gears(spur gear, bevel gear, sprial gear, internal gear, sprocket, chain wheel) transmission, reducer ,shaft and sleeve etc. ... normalizing, carbonitriding, carburizing, tempering6) Precision shot peen gear faces and roots to increase load capacity7) Standard: ISO, GB ... teeth of gear.11) Competitive price & prime quality & best service & timely shipments12) Accept trial order OEM GEAR MANUFACTURER