... s specially used to diaphragm walls,such as for pit strutting,dam anti-seepage and dock cofferdam,etc. ... original cummins,caterpillar(SG40E) turbocharged intercooled engines;* Winch and hydraulic hose reel system;* Electric measureing system;* Alignment control system ... upper mast,lower mast;* winch,wire rope;* hydraulic hose drum;* hydraulic hose,hydraulic hose reel,* cylinder,pulley block,cable drum, ...