1)screw threaded flange 2)DIN/EN 1092/ ANSI B 16.5/ UN/BS 3)DN 10--DN 3600 4)Carbon / stainless We can supply all kinds of flanges with good quality and prices.Features:screw threaded flange1) Size:1/2" ~ 64".2) Standard: ASME, ANSI, API, JIS, JPI...3) Material:carbon steel,alloy steel,stainless steel....DIN WN flange1) TUV and ISO 9001 certificates2) DIN/EN 1092/ ANSI B 16.5/ UN/BS 45053) DN 10 ...