ANSI carbon steel flange 1.Pressure:calss 150,300,600,900,1200,1500,2500 2.Type:WN,THR,SO,LJ,SW ANSI carbon steel flange1.Material:carbon steel Q2352.Pressure:calss 150,300,600,900,1200,1500,25003.Size:DN15-DN12004.Type:WN,THR,SO,LJ,SW5.Surface treatment:rust-preventative oil,black painted6.Packing:wooden cse or pallet. ANSI carbon steel flange