... T4213-2008, API598Product introductionHB2510 pneumatic piston O type shut-off ball valve is improved on the basis of our several years’ ... , 300,600,JIS10K,20k,30k,40kMaterial of parts Body WCB,CF8,CF8M,316L,Hastalloy C PlugWCB,CF8,CF8MStem310S,304,316LPackingPTFE ... , Bubble tightCertificationWorkshop and production equipmentsOfficeCompany mansion HB2510 Penumatic Control Ball Valve for Shut-off