... colour:coated with yellow paint Material: Carbon steel/stainless steel standard:ANS ANSI Carbon Steel A105 Welding Neck Lange:Specifications:Surface ... coated with yellow paint.Size: 1/2''-72''Material: Carbon steel/stainless steelStandard: DIN,ANSI,UNI,JISProcess: Forged/castStructure ... all kinds of flanges,eg.stainless steel flat flange,carbon steel blind flange,ss welding neck flange,and slip ...