... shaft, gear reducer, gear coupling, pin coupling, screw rod, nut, shaft type, sleeve type, roller, supporting roller, working roller, ... pulley ,wheel and so on.Rivet welding plant: we can undertake the processing of various metal ... : asxydsabrinaAnshan Xiyida Metallurgy Co., Ltd rivet welding, casting and forging pieces such as 180 T oxygen converter, 1550/250 mm ...