... Q345,API5L,GRB,X42-X65 and so on 5.Packaging: Painting black,cap, in bundle6.Application: Petroleum,smelting,foodstuff,power,papermaking, ... Q235,Q345,10#,20#,45#,12CrMo,15CrMo,SS304,SS3215.Packaging:Painting,Cap,Bevel(beveled edges),Bundles or as per customers ... Q345,API5L,GRB,X42-X65 and so on 5.Packaging: Painting black,cap, in bundle6.Application: Petroleum,smelting,foodstuff,power,papermaking, ...