... main products including O rings, Gaskets, Washers, custom mold rubber and other rubber seal kits.Our Material: Nitrile(NBR), HNBR, EPDM, Silicone, Fluorine(FKM ... 2000 setsWorker 150Staff25QC5Main productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR ...