... for trucks from CNHTC,like howo, steyr, shaanxi The piston ring we supply have the following characterastics1. quality insurance2.competitive ... after-sale severiceWe can supply all the types of truck piston ring for howo, Steyr. Steyr(the king), and also ... , dump trucks, tractor trucks, concrete mixer trucks and other special vehicles.While keeping development, Our Company also actively develops foreign ...