EN1092-1 Forged Carbon Steel Drilling Pipe Flange 1.Size:PN10-PN800 2.Standard:ANSI B16. ... 5,JIS10K,ISO7005-1 EN1092-1 Forged Carbon Steel Drilling Pipe Flange TypeSlip-on,Welding Neck,Blind,Flat,Lap Joint ... products,pls contact me freely EN1092-1 Forged Carbon Steel Drilling Pipe Flange