Jinan Grock Trade Co.,Ltd,a manufacture with more than 20 years experience in business of engine injection parts including injection pump,injector,nozzle,plunger,delivery valve,pump repair kit,oil pump etc,our servicing brands not limited to CAT,Komatsu,Deutz,Perkins,Denso,Bosch,Isuzu,Deutz,Cummins,Delphi,Liugong,Shangchai,etc,with our good quality and service,our products enjoying good sales home and abroad