... 1.Size:PN10-PN800 2.Standard:ANSI B16.5,JIS10K,ISO7005-1 ANSI B16.5 Standard Carbon Steel Pipe Flanges TypeSlip ... -on,Welding Neck,Blind,Flat,Lap Joint,Socket Welding American StandardANSI B16.5 ... B16.47 British StandardBS10,BS3293,BS 4504 PN2.5,PN6,PN10,PN16,PN25,PN40 ISO StardardISO 7005 ... ,pls contact me freely ANSI B16.5 Standard Carbon Steel Pipe Flanges