Stainless Hard Seal Ball Valve DN 15~200 1/2-8" WCB,Stainless steel,304,316,316L 150lb,300lb,600lb Specifications Stainless Hard Seal Ball ValveDN 15~200 150lb,300lb,600lbFloating BallStainless Hard Seal Ball ValveDN 15~200 1/2”-8” 150lb,300lb,600lb WCB,Stainless steel,304,316,316LDIN,GB,ANSI,BS standards. ANSI Flanged Hard Sealed Two-piece Stainless Steel Manual Ball Valve