... .water, oil resistance, anti-aging 2.silicone,rubber material 2.FDA,ROHS,SGS Certificate Factory history8 ... yearsFactory area3700m2CertificateSGS, ROHSMachines(20sets)Rubber mixer, Automatic slitting machine, Slicer, Flash device, ... productso rings, gaskets,custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR ...