Certificate:ISO9001:2000 Steel grade: Q235/Q345 Easy to install,fire proof,good insulation steel structure We can design,fabricate and install all kinds of steel structure buildings.Item Name:steel structureSize: Length,Width and height according to customer's requirements.Material: Q235 and Q345.Surafce: hot dip galvanize or PaintedDrawings: We can make the quotation according to customer's ...