... ,DRILLING RIGS,WATER COOLED,GAS STARTERS. CAT C6121SC11C(121) diesel engine—— Best Power of China Engineering machinerySC11C(121) series ... continuous technical supports provided by Caterpillar’s company while Shanghai Diesel Engine Co., Ltd introduced the machining facilities for major ... of design and manufacture, thus making 121 series of diesel engines being well-known regarding the high quality and ...