Main Products: Welding-neck Flange,Slip-on Flange,Socket welding Flange,Butt welding flange,etc Specification of Stainless Steel Flange:Main Products:Welding-neck Flange,Slip-on Flange,Socket welding Flange,Butt welding flange,Threaded Flange,Blind Flange,Plate Flange ,Lap joint flange and all kinds of Special Flange. Standards:Production acc. To the standard of GB/ASTM/ASME/DIN/JIS etc.ISO7005-I ...