... , custom mold rubber and other rubber seal kits.Our Material: Nitrile(NBR), HNBR, EPDM, Silicone, Fluorine(FKM,FPM), Neoprene(CR),Styrene ... setsWorker 150-200Staff25QC5Main productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR ...