... 3.many kinds of type Forged FlangeCarbon Steel flange For forged rings:15000tons/year For forged flanges:1000 ton/year For ... success.Type:welding neck flange,slip on flange,lap joint flange,thread flange,slip on flange,blind flange Material:carbon steel,stainless ... ,GB,AWWA,API,MSS,LWN,Orifice,8-Figure flange Size:OD up to 5000mm Pressure:75bls to ... :in-house and the third party Special Forged Flange