... 3.Durable, prevent grind prevent scrape 4.used for LPG/CNG mixers Composite mixer diaphragm, the bottom silicone rubber, fiber layer ... shape. Through the implementation of the utility model make LNG, CNG, LPG engine cost reduction, the replacement of the cycle of ... and low temperature effect and be able to work under pressure big increase. Diaphragm for LPG/CNG engine mixers