... :ASTM,GB,AISI LONGTAI STEEL CONSTRUCTION ENGINEERING CO.,LTD.Specialize in steel structure for 11 yearsNationalo steel structure class AWith GB ... ,Australia,Pakistan,Angola,Tanzania and so on.Specifications: Main Steel:Q345B,Q235B Beam:Welded H-section Surface: Hot dip ... welcome 2.As long as you like ,we can design suitable drawings to meet your various needs.Quotation:Item NameDescriptionUnitUnit Price ...