... can offer EN1024;3.1&3.2 certificates 1) welding neck flange 2) ANSI, MSS, API, AWWA, DIN, JIS, BS and GB ... 5,000mm 4) Carbon steel, stainless steel and alloyType: Thread flange.Standand: ANSI, MSS, API, AWWA, DIN, JIS, BS and GB ... and alloy steel.Packing: wooden case.plastic cloth inside welding neck flange