... Standard:ANSI,BS,DIN,GB,ISO. 4.15--600mm Flange of good quality1.TUV and ISO 9001 certificates2).DIN/ JIS ,ANSI ... / forged steel /Stainless steel WN Flange5.Types:Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice ... ,Class25007.Reasonable price and reliable quality We manufacture all kinds of flanges ,such as forged SO flange ,blind flanges and welded ...