I-HC itholakala kwisixeko sase-Changsha, kwiphondo laseHunan, Iimveliso eziphambili ziquka i-CRANKSHAFT, i-CYLINDER HEAD, i-CYLINDER BLOCK, i-PISTON, i-PISTONG RING, i-CYLINDER LIner, i-BEARING. Iimveliso zisetyenziselwa ulwandle, i-locomotive, i-generator, oomatshini bokwakha, iilori ezinzima, iibhasi njl izithuthi zorhwebo. Imodeli ye-injini yokugubungela i-CUMMINS, i-CATTERPILAR, i-DETROIT, i-VOLVO, i-MERCEDES-BENZ, i-MAN, i-DAF njl., uphuhliso njengomzobo wabathengi okanye iisampulu yinzuzo yethu. Ngoku iimveliso zithunyelwe ngempumelelo kumazwe angaphezu kwama-30