... and waste watertreatment industries, especially applicable to the automation control of fluids with fibre, granule, or with greaterviscosity, and ... special gaseous media such as oxygen and coal gas. SpecificationDN mmDN15-400mmPNANSI 150, 300,600,JIS10K,20k,30k ... VI, Bubble tightCertificationWorkshop and production equipmentsOfficeCompany mansion HB2510 flow control Shut-off ball valve