91视频H污污


30

2021

-

03

General material of O-rings


General material of O-rings

Nitrile butadiene rubber, carboxylic nitrile, fluorine rubber, ethylene-propylene rubber,

hydrogenated nitrile butadiene rubber, silicone rubber, neoprene rubber, fluorosilicone rubber,

polyurethane, chlorol rubber, styrene butadiene rubber, butyl rubber, natural rubber, ethylene/ethylpropionate rubber,

polyacrylate rubber, perfluorine rubber and so on