... ,Q235 ect. 2.Size:DN15-DN2000 3.Standard:ANSI,ASTM,MSS,JIS,DIN,EN HY carbon steel Welding Neck Flange We started ... Flange, Socket Welding Flange, Blind Flange, Non-standard flange ect.3. Size1/2-78 inch (DN15-DN2000)4. MaterialCarbon Steel Material ... -30days depends on your quantity11.Supply Capacity700 tons per month HY carbon steel Welding Neck Flange