1)Carbon and Stainless steel flange 2)Standard:DIN,ANSI,BS,UNI,NS, ... )Material:A105,Q235,16Mn,20Mn 4)TUV CE and ISO We are exporter and manufacture of all kinds of flanges. 1) Size ... ' drawings for special use; 4) Types:SO,BL,Plate,Thread,Socket and etc; More information is available upon receipt of your enquiry ...