... abasic materials for industries or construction 1 galvanized pipe hollow structural section,1 hollow pipe section1.ASTM A53,ASTM A500, ASTM ... 4.EN10219,EN10220,EN10240,EN10255 5.DIN2440,DIN2444,DIN2458 6.AS1163,AS1074,AS2556OuterDiamete: 1/2"to16"Wallthickness: 0.6mm ... Q215,Q235,Q345,10#,20#,ASTM,A160,GRBPackaging: Plastic Cap,Inbunddle and othersZincGrade:280g-320g per M2Applications:Petroleum,power, ...