... heavy duty trucks, semi-trailers and trailers; generally include two parts :front and rear wheel. 4.Head and spline is machined by CNC ... of brake S-Camshaft. 5 .Intermediate frequency quenching, Hardening and tempering, Normalizing treatment, Heat Treatment 6.Provide tailor-made products ... ,FUWA, YORK ROR, SAF ,KIC ,BENZ ,STR , AN and so on. Brake S- cam Shaft for Fuwa heavy duty truck trailers