Principalmente envolvidos em peças de motor diesel monocilíndrico de Changchai, Wujin, Changfa, Shifeng, JAC, Changtong, Laidong, Taichai, Jinniu, Xinxiang, Yanmar, Mianyang, Quanjiao, Sichuan, Shuhe, Yingtian, Yamike, etc. L22, L24, L28, JD018, JD108, JD118, SD128, SD138, KM130, KM138, KM160, KM173, KM186, Laidong 29 Tiger, LD24, LD28, TC118, Shifeng 168, Shifeng 178, Shifeng 188, Shi Feng 139, feng 148 , Shifeng 24, CT25, CF25 e todos os 1130, 1125, 1120, 1115, 1110, 1105, 1100, 195, 192, 190, 185, 180, 175, etc.








