Stainless SteelChina ASME B16.5, ASTM A53 A350 Gr. Lf2 Cl1, Class 300, Face Type: Raised Face, 2′′ Sch80, Welding Neck Flange,, Find details about China Flange Flg, Integral Pipe Flange from ASME B16.5, ASTM A53 A350 Gr. Lf2 Cl1, Class 300, Face Type: Raised Face, 2′′ Sch80, Welding Neck Flange,