Shiyan Qingbang Machinery Equipment Co., Ltd. is specialized in the trade and service of Cummins engine assembly and spare parts, with deep study at Cummins machinery engines like 4BT, 6BT, 6CT, L8.9, M11 series, electronic control engines like ISB, ISD, ISL, ISM, QSB, QSC, QSL, QSM series and mining and marine engines like NT855 K19 K38 K50 QSK18 QSK38 QSK60 series.