... , bronze, copper 4. ISO, TS16949, ROHS Sintered Bushes1. Zhejiang Jililai New Material Co., Ltd is a professional manufacturer of specializing in copper powder ... engine, brakeing chassis and motorcycle gearbox, steering gear, hydraulic oil pump, engineering machinery, air conditioner compressor, refrigetator sleeve, etc. Alloy MaterialCuPb3Sn6Zn6Hardness ...