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)-----48"(DN1200)Coating: black paint, yellow transparent paintSealing surface type: FF(flat face), RF,( raised face) RTJ(ring type join) ...