material: stainless steel,carbon steel ,alloy steel flange and dual phase steel Standard: JIS,ANSI,UNI,DIN,NF,ASME,API,JPI,AWW 1).forging scope:dimeter 5000mm or smaller2).weingt: 6T or less3).material:various types of crabon steel,alloy steel,bearing steel,stainless steel,etc.4).use for wind power generation,nuclear power generation,ship,pressure vessels,petrochemical,machinery manufacturing, ...