... steel, carbon steel and all; 2)Standard:ANSI, DIN, BS,UNI, JIS,SABS Carbon steel forged long welding neck flange 1) material: stainless steel, carbon steel ... , EN, and customers' drawings for special use; Material Carbon steel, alloy steel, stainless steelPressure RatingsClass 150, 300, 600, 900, 1500 ... requirement Delivery timeWithin 20 working days Carbon steel forged long welding neck flange