o-rings 1) Materials: NBR, NR, FPM, MVQ, EPDM, Silicone 2) High/low temperature-resistant, wearing resistant, oil-resistant rubber o-rings features: 1) Materials: NBR, NR, FPM, MVQ, EPDM2) Characteristics: high/low temperature-resistant, wearing-resistant, oil-resistant3) Specifications: State standard and non-state standard sizes are available4) Colors: black, blue, brown, green, red, white, ...