... flange,integral pipe flange steel pipe flange ,threaded flange , slip-on flange socket welding flange ,lap joint flange welding neckflange ,blind flange, orifice flange reducing flange ,pad type flange ,loose hubbed flange ... welding plate flange pressure150lbs-2500lbsmaterialCarbon steel ,stainless ,Alloy StandardGB,ASME.ANSI .API,JIS,DIN BS,EN,MSS Process flow diagram: Packing ...