Bearings, Machine Tools, CNC Machines manufacturer / supplier in China, offering ball Bearing for Electrical Motor/Fan/Skateboard/generator/Pulley/Auto Parts, stainless steel Bicycle Bearing K4052H7-45/45-2RS Sealed cartridge Headset for bike, Heavy Duty Slewing Bearing for Excavator, Crane, Wind Turbine with External Gear and so on.