The company is mainly engaged in engineering machinery accessories, mainly engaged in Hang Chi gearbox, ZF series gearbox assembly and accessories, YD130, 4WG180, 4WG200, 6WG180, temporary loader SDLG accessories: LG936, LG956, LG958, Longgong loader LONGKING accessories: CDM833, LG833, CDM855, CDM856, LG855, XCMG accessories: ZL30G, LW300K, LW300F, ZL50G, LW500K, LW500F, XCMG graders: GR180, PY180, GR215, XCMG cranes: QY25K, QY50K, QY75K, Shantui SHANTUI: SD16, SD22, SD32, SL30W, SL50WA, Shangchai D6114, D9, SC11, C6121 engine assembly accessories, Yuchai YC401, YC6108, YC6M Weichai WD10G, TD226B, WD615, WP6G engine assembly and accessories.