Technical indicators rubber bellows material: natural rubber, EPDM rubber, silicone, plastic Size: according to customer requirements characteristics: flexibility, resistance to ozone, tensile strength is high, acid, corrosion resistance, hermetic Good Applications: aerospace, petroleum, chemical, metallurgical, power, paper, pharmaceutical, food, timber, tobacco, transportation and other industries. Rubber bellows sealing material requirements are generally 1) densification good, not leaking medium; 2) have appropriate mechanical strength and hardness; 3) compression and resilience, permanent deformation is small; 4) does not soften at high temperatures , does not decompose at low temperature hardening, embrittlement; 5) good corrosion resistance, acid, alkali, oil medium, long-term work, its small size and hardness changes, and not adhere to the metal surface; 6 ) low coefficient of friction, good wear resistance; 7) in combination with a sealing surface softness; 8) good resistance to aging, durable;