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2" A350 Lf2 Cl2 B16.5 Forged Carbon Steel Blind Flange Product Details Material Carbon steel ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH,Q235 P250GH, P280GHM 16MN, 20MN ,20# ...