China Pn10 / Pn16 Ductile Iron / Carbon Steel Flanged End Eccentric DN1800 / 72" Inch Butterfly Valve with Series 13 / 14, Find details about China Pn16 Butterfly Valve, U Type Butterfly Valve from Pn10 / Pn16 Ductile Iron / Carbon Steel Flanged End Eccentric DN1800 / 72" Inch Butterfly Valve with Series 13 / 14