... unstand silcone oring 2) Quick supply 3) Stringent quality checks Elastic rubber o-ring:1)Strictly according to the ASTM20052)Excellent ... all kinds of rubber itemsPlace of originXiamen, China Features has a good resistant of high and low temperature, oil, water, ... tensile, elongation, and has a good compression set, etc. MaterialNBR, EPDM, SILICONE(MVQ), Viton(FPM ...