... , API598Product introductionHB2510 pneumatic piston O type shut-off ball valve is improved on the basis of our several years’ ... metallurgy and waste watertreatment industries, especially applicable to the automation control of fluids with fibre, granule, or with greaterviscosity, and ... VI, Bubble tightCertificationWorkshop and production equipmentsOfficeCompany mansion HB2510 flow control ball valve