Focus on process quality & stage inspection. 24"ASTM A350 LF2 Hardness:167HB Guarantee period:1year UT as ... ; Welding neck; Socket welding; Lap joint; Plate flange; Threaded flangeMaterial: Carbon steel; Mild steel; Stainless steel; Duplex stainless steel; Low alloy ... --7000kgSealing face: RF, FM, MFM, TG, FF, RJMANUFACTURING PROCESS Hot! 24"Socket welding ANSI B16.5 flange