... or seal outer diameter, the axial cross section and the radial cross section.Hydraulic Seals – Type Piston SealsRod SealsBoth Piston & Rod SealsDust SealsBuffer RingWear ... , HTC3, HTC5, HTC9, TCL, SCY, SCJY, VSB, SB2, HTBW, HSC Hydraulic pump high pressure appropriative seal:TCN,TCV Metallurgy appropriative seal: SB ...