... .9 carbon steel flange 2.1/2'' to 60'' 3.high quality 4.T/T,L/C carbon steel ... flange 5.API,CE,ISO A105 ASME B16.9 carbon steel flange 1.Products Items ... flange;blind ;spectacle blind,etc.2. Material: stainless steel,carbon steel,alloy steel 3. Size range: From ½” up to 60” ... , WP321, WP347, WPS 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS S32760 ...