Products name:WN flange 1.Material:carbon steel 2.payment:T/T and L/C at sight 3.high quality,good price 4.certiifcate:API Product name:WN flangeOur welding neck flanges feature high strength, good toughness, and high resistance to corrosion, high pressure and temperature. The raw materials of them come into carbon steel, stainless steel, and alloy steel, low temperature steel and high ...