... Hydraulic Cylinder:adopts STKM-13 seamless steel cylinder and S45C precision machined piston.*Oil Seals of Auxiliary Hydraulic Cylinder and Hydraulic Cylinder ... : abrasion and temperature resistant,durable.4,Oil Seal:All shaft oil seals and packings adopt UGD/J from West Germany ... cylinder can be adjusted.20mm/sec-136mm/sec.10,Surface Precision:within 0.03mmPLC Controller,please tell us the total ...