... manufacturer in various rubber sealing kits, our main products including O rings, Gaskets, Washers, custom mold rubber and other rubber seal kits ... ), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR,PU etc.Material PerformanceRebound resistance, Tear Resistance, Abrasion Resistance, Impact Strength ... time15 daysMore information Please feel free contact with us Rubber o ring seals