I am the company's main Cummins mechanical A2300, B3.3, 4BT3.9, 6BT5.9, 6CT8.3, L8.9, L10, M11, ISBe, ISF series, electric control, ISDe, ISCe, ISLe, ISM11, and QSB3.3 series of mechanical engineering, QSB5.9, QSB6.7, QSC8.3, QSL9, QSM11, N14, NT855, K19, K38 series engine assembly and parts. It covers: Komatsu (KOMATSU), modern (HYUNDRI), Ingersoll Rand (Ingersoll-Rand), Sany (SANY), Yutong Heavy Industries (YUTONG), sunward, ZOOMLION, lonking, Xugong, Liugong, Xiamen Engineering and other engineering machinery and Yutong Jinlong (YUYONG), (KING-LONG), An Kai (ANKAI) bus etc..