Pipe Fittings Certification : TUV , ISO 9001-2000 1) Name: Belt Neck Butt Welding Flange(High-Neck Flange)2) Sizes: From DN15 to DN600 ... Carbon steel4) Standard: ANSI, DIN, EN1092-1, BFE, AS, JIS and customers drawings for special use5) Types: WN, SO, BL, Plate ... , Thread, Socket and etc6) Process: Free forging, plate cutting and casting7) Packing: In wooden cases, wooden pallets ...