This rubber diaphragm should have the advantages of heat resistance, medium resistance, pressure resistance, flex resistance and high sensitivity. The manufacturing method is that the rubberized fabric and the rubber material are cut and cut into shape and then vulcanized by a film type. The flat diaphragm can also be continuously vulcanized and punched by a drum vulcanizer. Rubber diaphragms are widely used in industries, transportation and other sectors, and can be used as sensitive components in instruments, regulators and other automatic control systems. Its working temperature is generally -50 ~ +100 ℃, and the working pressure is 0 ~ 2bar.