... of various size o rings, rubber gaskets,washer, custom rubber and seals, molded rubber Shenzhen (Xinhuaxu)XHX ... ourvalue customer’s demand. OEM produce different size and shape rubber seal kitsGood qualityCompetitive priceMore considerateMore about us : ... over 2000 setsWorker 150Staff25-30QC8-10Main productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon ...