1.material:silicone 2.the largest supplier 3.Durable, prevent grind prevent scrape 4.used for LPG/CNG mixers Composite mixer diaphragm, the bottom silicone rubber, fiber layer, top of silicone rubber, its features are: the bottom silicone rubber posted on fiber layer, fiber layer is covered on the top of the silicone rubber, fiber layer clip at the bottom of silicone rubber, top silicone rubber ...