Түгээмэл хэрэглэгддэг металл бус материал нь хавхлага нь …
Valve commonly used non-metallic materials check the connection mode between the electric actuator and each valve Ethylene propylene rubber seat rated temperature range is -28 ℃~120℃. EPDM stands for terpolymer of ethylene, propylene, and diene, commonly called EPT Nordell. Excellent ozone resis...