... scrape 4.material:silicone Composite mixer diaphragm, the bottom silicone rubber, fiber layer, top of silicone rubber, its features ... silicone rubber, top silicone rubber between.The bottom silicone rubber, silicone rubber compound top to ensure the sealing performance and diaphragm mixer ... structure strengthened the composite mixer the shape of the diaphragm, double silicone rubber longer life, fiber ...