ANSI B16.5 CLASS150 WELDING NECK FLANGE Material: A105 Processing technic: forging Coating: black,yellow ... paint Product DescriptionName: FlangeProcessing technic: ForgingStandard: ANSI B16.5Type: Welding Neck, Slip-on, Blind, Lap-jointMateria: A105Size: 1/2"(DN15)----- ... products are welding neck , slip-on , blind, plate, socket welding, lap joint and loose flanges, elbows of short and long redius ...