... 1528 1823 1828 2523 2528 2628) The engines include Benz series (OM355A,OM366LA,OM441,OM441LA,OM442LA,OM422,OM444LA,OM447 ... , engine components, crankshaft, camshaft, shaft bush, steel sleeve, piston, piston ring, piston rod and etc. passed the certification of ISO 9001-2000 ... GJB9001A:2001 quality management system. Truck parts of North-Benz 2626.2628.2629.2631 and Chongqing Tiema, and components ...