26 Jul Dia:4mm-12.7mm Nitrile Rubber Solid Balls Bouncy Ball Black NBR Oil Resistant
Outstanding oil resistance: The acrylonitrile component of nitrile rubber (NBR) gives it excellent resistance to mineral oil, vegetable oil, aliphatic hydrocarbons, etc. ● Material:Nitrile Rubber. 6mm 6.35mm 6.7mm 7mm 8mm 9mm....