Blind flange We manufacture and export various flanges. Product name,Blind flange , Nominal diameter,Dn10-dn1000, Nominal pressure ,0.6mpa-10mpa, Material,F316/f304/f316l/f304l/a105 /f5/f11/f22, ,15crmo, 12crmov, q235, 16mn, 20#, etc, Sea worthy package