... , CAM, Brake Shoe, Transmission Rod, Steering Wheel quenching etc. 2.Motor Parts:the shaft hardening for rotor, the degrease of silicon steel plate ... rotor, epoxy powder coating for rotor etc. 3.Steel: the heating process for stainless steel tube, cramp iron, epoxy powder coating for ... heat-fusion for elevator pulley and shaft, the welding of steel tube, tube bending etc.4.Hardware: the pre-forging for ...