... 150LB) d.Connection:flanged a.material:WCB ,CF8 stainless steel or cast iron b.Port size:20-500c. ... iron ,ductile iron ,stainless steelstrainerstainless steel ,1CR18NI9TIProductions:We can produce gate, check, penstock,lifting,ball,air release,foot and butterfly ... valve with the materials of ductile iron, carbon steel, , stainless steel, ,cast iron ...