standard : ASME,ASTM,ANSI,DIN,JIS,API,MSS,AWWA size : 1/2" ~ 80" material : Carbon Steel, ... Stainless Steel.Alloy steel 1. Standard : ASME,ASTM,ANSI,DIN,JIS,API,MSS,AWWA2. Size : 1/2" ~ 80" (Special Design Available ... . Certification : ISO 9001 8. Competitive price based on good quality JIS B2220 20K blind flange