... weight, long lifespan and convenient to be installed andmaintained;2) Eccentric structure can reduce the wear of seat and expand ... 600 JIS10K,30K 60KMaterial of parts BodyWCB,CF8,CF8M,Hastelloy B-2, Hastelloy C-276DiscWCB,CF8,CF8MStem310S,304,316LPackingPTFE, graphite Sealing ring ... ,VI, Bubble tightCertificationWorkshop and production equipmentsOfficeCompany mansion 100A-HB2810 Pneumatic Ball valve