Main products or services: Dongfeng Chongqing Cummings engine; Cummings; Cummings; Cummings; Hall Seth; Shanghai fleetguard filter; filter; three; engine; engine parts engine; Cummings; Cummings A2300, B3.3, accessories; 4BT3.9, 6BT5.9, 6CT8.3, L8.9, L10, M11, NT855, K19, K38 series, electronic control ISF, ISBe, ISDe, ISCe, ISLe, and QSB3.3 series of mechanical engineering, QSB5.9, QSB6.7, QSC8.3, QSL9, QSM11, QSX15, QKS series engine assembly and parts. Main industries: generating units parts; engine assembly; filter; cylinder and components; piston, piston ring, piston pin; crankshaft, camshaft