... 2.produce deponding on your requirment 3,kinds of stypes ANSI flangeCarbon Steel flange For forged rings:15000tons/year For forged ... Material:carbon steel,stainless steel and alloy steel fange Standard:ANSI,JIS,BS,DIN,UNI,EN,GB,AWWA,API,MSS,LWN ... and Zn Inspection:in-house and the third party specialize ANSI flange