Chat Now. DKBI3 Double Lip Frame Dust Seal Hydraulic Cylinder Wiper Seals. Description: Made by NOK, DKB dust seal is used to prevent dust, dirt, sand, and metal chips from entering the hydraulic cylinder. Due to reducing the intrusion of external contamits into the sliding element creates a risk of scratches.DKBI Dust Seals, US $ 0.1 - 1 / Piece, Sichuan, China, YFW, Dust Sea. on .The price of High Quality Dust Seal Dkb/dkbi Wiper With Pu/nbr Material,nbr + Metal Dust Oil Seals Dustproof Oil Seal from China is based on the bulk order quantity. Bangna Import & Export Trade , Co. offers flexible prices for Oil Seals variations depending on the importing country and quantity.China Dkb, Dkbi, Pad, Dsi Type Hydraulic Cylinder PU Dust Seal, Find details about China Dust Seal, Dust Seal Ring from Dkb, Dkbi, Pad, Dsi Type Hydraulic Cylinder PU Dust Seal - GUANGZH.