... require)5.Working sections:1 to 12 all be ok6.Spool stroke:+7~-7mm7.Tie-rod tightening torque:55+/-5N. ... in the design,R&D,manufacture and sale of hydraulic valves.Our main products have been divided into two big ... we can supply different control style,such as manual control,detent control,pneumatic control,double control,electrohydraulic ON-OFF control,cable remote control,hydraulic control and so on ...