... O rings, Gaskets, Washers, custom mold rubber and other rubber seal kits.Our Material: Nitrile(NBR), HNBR, EPDM, Silicone, ... 2000 setsWorker 150-200Staff25QC5Main productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR ... , Neoprene(CR),Butyl(IIR),NR,PU etc.Material PerformanceRebound resistance, Tear Resistance, Abrasion Resistance, Impact Strength ...