... B 16.36.Blind, slip on, welding neck flanges are from 6 Bar to 40 Bar in accordance with ... UNI,AS2129,GOST-128202. Type:Plate,Slip-on,Welding Neck.Thread,Socket weld,Blind3. Size:1/2-78 inch (DN15-DN2000 ... rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,6. Inspection:factory in-house self check or Third Party ... 30days for 1000tons10.Supply Capacity: 10000tons per year High quality forged flange