... . galvanized hollow section CHS,SHS,RHS,GAL.Tianjin Haiyunda Metal Material Co.,Ltd.Rectangular hollow section/Square steel pipe,Rectangular pipeDimensionSquare ... or other requestEndPlainTechniqueERW,Hot Rolled,Cold RolledTypeWeldedApplicationStructure,Machinery,Airport,Railway,Building,Construction ETC.Place of OriginTianjin,P.R.ChinaPackingBags,Bundle,In bulk ...