1) Spool/ Sliding Valve 2) Spool Valve in Actual 03) 5/3 Way Lever Operated DC Valve 04) 5/2 Way Roller Operated Spring Return DC Valve 05) Brass Silencer
1) Description of Single & Double Acting Cylinders 2) Various Cylinder Mountings - how to hold a cylinder in place ? 3) How a Hydraulic Cylinder is Made? 4) Telescopic Sylinder