... parts. 3,BPW standard. We can supply various camshafts,slack adjuster,fifth wheel and Kingpin for trucks, semi-trailers.1,Supply ... welding. 2. HJ axles spindle, which was processed by digital controlled lathe, is made of alloy material. The bearing position ... 9. HJ key parts in the axle are processed by digital equipment, axle produce according to the international standard, high interconvertibility ...