... and A105 2) Welded neck flange, blind flange, plate flange, threaded sch80 WN Flange Plate adaptor: Features:1) Materials: Q235 and A1052 ... ) Welded neck flange, blind flange, plate flange, threaded flange, slip-on flange,and socket welded flange ... , 10K, 16K, 20K, 30K,40KPacking:Wooden cases sch80 WN Stainless Steel Flange Plate adaptor