... 20mm~100mm 4) carbon steel material HRPC brand double rods hydraulic oil cylinder 1) type:doubling acting2) inner/external thread3) ... HRPC company is a china manufacturer of hydraulic components, our products include:hydraulic ball valves, high pressure ball valves, ... good service5) ODM/OEM servicedDetails of HRPC brand double rods hydraulic oil cylinder HRPC brand double rods hydraulic oil cylinder