... the material you want ,usuly the material is Q215 Q35A and Q235B Q345 Q460the word discription is not enough if you ... the material you want ,usuly the material is Q215 Q35A and Q235Bthe word discription is not enough if you are interest ... pipe main used in: construction,fence,structural tube,window section and other parts ,frame, shelf,etc Executive StandardGB-13793-1992 BS1387 ASTM ...