Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering Factory High Quality Manufacturer OEM Custom T2.5 T5 3m 5m 8m Industrial Aluminum Steel Timing Pulley Synchronous Pulley, Custom Steel 45# Brass Hollow Shaft with Bye Hole and Internal Hole for Auto Industrial, Variou Types of Gear Shaft Nitrogen Black Oxidation Electrophoresis Electroplating Customized Motor Shaft and so on.