... rubber o ring NBR material, 1. AS568 standard OEM high quality NBR rubber o ring features :1) Material: NBR ( NR, FPM, ... ) Colors: black,blue,brown,green, red, white, purpleInner packing : Plastic bagOuter packing : Carton boxWe can produce according to your samples ... ,blue,brown,green, red, white, purple Packing Inner packing : Plastic bag Outer packing : Carton box Note We can produce according ...