Valve body : Forging Valve disk: Forging Gasket : FPM , EPDM, Silicon CE, ISO9001 3A certification Features:1) Material: SS304, SS304L,  SS316L2) Seal: Silicon, EPDM FPM3)Working temperature: -20 ~ 135°C4) Connection : weled, quick-installed, thread ,flange5)SIZE :...