I-Changsha Haochang Machinery (HC Enginepart) ingumkhiqizi ozinze eChina futhi ethumela ngaphandle izindandatho zepiston esikhundleni sezinjini ze-MAN B&W ezinesivinini esiphansi sezinjini zikadizili zasolwandle, okuhlanganisa nochungechunge lwe-MC-C ne-ME-C. I-HC yakha amasongo e-piston kusuka kumasampula ekhasimende noma imidwebo, enobubanzi obusuka ku-φ30 ukuya ku-800 mm — ehlanganisa amamodeli e-MAN B&W afana ne-S50MC-C (500 mm bore), S60MC-C (600 mm), S70ME-C (700 mm), kanye ne-S80ME-C (800 mm). Wonke amasongo e-piston akhiqizwa ekucacisweni kwe-OE ngaphansi kwe-ISO 9001:2015 uhlelo lwekhwalithi. Lezi zinjini zisebenza njengenjini eyinhloko emikhunjini emikhulu yamabhokisi, ethwala ngobuningi, nakumathangi.