... Famous Trademark of China 1. UsesHONGDA ZJ40 piling rig is an efficient boring rig in big-bore pile-base project construction, ... and error-proof operating system.3.15 Engine,hydraulic pump, hydraulic motor, hydraulic valve, reductor,chassis part,electronic control device ... original GERMANY REXROTH(the machine’s all hydraulic pump,hydraulic motor,hydraulic valve). 3,Chassis parts—from ITALY BERCO ...