Type:welding neck flange,slip on flange ,lap joint flange,thread flange,blind ... -1, UNI,AS2129,GOST-128202. Type:Plate,Slip-on,Welding Neck.Thread,Socket weld,Blind3. Size:1/2-78 inch (DN15 ... requires please contact me .Best RegardsLisa lee Flange/ISO/WELDED/NECK /BLIND/CS