SO Flange RF,12",300#,ASTM A105/ANSI B16.5 1.Standard:ANSI, DIN,JIS, BS 2.carbon/ ... RF,ANSI B16.5,UNIT WEI1GHT:5KG12",300#,ASTM A105/ Size1/4''-48'',DN8-DN1200WTSCH5S-XXSStandardANSI B16 ... .9, ANSI B16.28, DIN , ISO, EN,JIS,MSS SP, BSCarbon Steel 10# 20# Q235B ... , plate flange , Threaded flange, blind flangeInspection Factory in-house or Third Party inpection Ur demand is our pursuit ...