Diaphragm Diaphragm for air chamber plays the role of pressure transmission in the brake system of automobile. Our company supplies various general-purpose and oil resistance diaphragms specially for high and middle grade automobiles in China. Rubber diaphragm for vacuum booster is a new generation of product for brake system of automobile. We have two kinds of diaphragm, one is oil resistance type, the other is normal type. Carton suitable for sea transportation
