1.Size: 1/2"--24" 2.Material:carbon steel 3.Certification:ISO9001 4.Standard:ANSI,DIN,JIS,ASME,BS,etc ... , DIN Flange, JIS Flange, BS Flange and GB Flange etc; 4 Size: 1/2"--24" 5 Printing: Yellow print, black ... print, oil and Zn 6 Class: 150LB~1500LB ... a custom order, please feel free to contact. high quality and low price blind flange