... 3,kinds of stypes steel plate flangeCarbon Steel flange For forged rings:15000tons/ ... welding neck flange,slip on flange,lap joint flange,thread flange,slip on flange,blind flange Material:carbon steel,stainless steel and alloy steel fange Standard:ANSI,JIS ... ,BS,DIN,UNI,EN,GB,AWWA,API,MSS,LWN,Orifice,8-Figure flange ...