Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering Custom Designed Spindle Tempering Scm440 Sncm220 S45c Stainless Steel Aluminum Carbon Steel Shaft Gear, Custom Aluminum Hardened Linear Shaft Knurled Shaft Hydraulic Press Spiral Shaft, Sprocket Roller Chain Sprocket Chain Transmission Steel Stainless Steel Roller Customized Metric Wheel High Quality and so on.