Brake Assembly, Trailer Axle, Axle Assembly manufacturer / supplier in China, offering 250X40 mm for Williams Type Trailer Brake Backplate Assembly Pair, 250X40 mm Trailer Brake Backplate Assembly for Axle and Brake System, High Quality 7000 Lbs 12X2 Inch Trailer Brake Drum for Light Duty Trailer and RV and so on.