... as per requirement. Hydraulic cylinder’s standard is B type piston (optional: A type piston).Hydraulic Cylinder Parameter MaxMinCylinder bore:280 mm10 ... tensile cast steel8.Piston nut(applicable for A type 1.5", 2"bore & applicable for B type) Jam nut, grade 8, high ... iron ASTM A536 65-45-12, type A & type B piston availableA. Piston ID seal(B type piston)O-ring(1)+back up ...