... .420*200 and 420*180mm Huajing Brand Brake Shoe Brake shoe is adopted Q345 and Q235 as ... concentric degree within 0.02MM strictly.4.HJ brake lining is high performance, non-asbestos, non-pollution ... and heat resistant.7.HJ wheel hub and brake drum use the international standard material of ball ... for trucks, semi-trailer parts.2,produce Brake drum, Brake shoe and other spare parts.3,BPW standard ...