... /SI/EPDM/PU 3. TYPE: NOK / VALQUA STANDARD WIPER SEAL/ WIPER RING (DHS/ LBH/ Ydx) WHY CHOOSE US?1 ... DSI, DWI, LBH. · VALQUA Standard compliant wiper seals design: DHS. · Other seals wiper design: J, Ydx5. QUANLITY a. Ozone ... o ring, x ring, v ring, oil seal, wiper seal, u ring, rod seal, piston seal, rubber ... independent research and development by us. DUST SEAL/ WIPER SEAL/ WIPER RING (DHS/ LBH/ Ydx)