... Quick supply 3) Stringent quality checks Elastic rubber o-ring:1)Strictly according to the ASTM20052)Excellent Chemical and physical ... welcomed5) Various in size and colour ProductsRubber o-ring, y-ring, u-ring, x-ring, rubber gasket and all kinds of rubber ... temperature, oil, water, tensile, elongation, and has a good compression set, etc. MaterialNBR, EPDM, SILICONE(MVQ), Viton(FPM), HNBR, ACM ...