material: stainless steel,carbon steel ,alloy steel flange and dual phase steel Standard: JIS,ANSI,UNI,DIN,NF,ASME,API, ... welding flange2material:stainless steel,carbon steel ,alloy steel flange and dual phase steel3Standard: JIS,ANSI,UNI,DIN,NF,ASME,API,JPI ... house and the third part8Out packing:seaworth plywood case raised face long weld neck flange