steel structure building: one or two floor avilable, fireproof, heat insulation, wind and seismic resistance, ... marked easy to erect), tile, gutter, wall panel, floor, window, door, sanitary, kitchen...and full set of instruction... 2.Specifications ... STEEL SHEET9mm GYPSM BOARDFLOOR SUPPORTING BOARD 1mm GALVANIZED MODELED FLOOR SUPPORTING BOARDGALVANIZEFLASHING EDGING0.5mm SELF FOLDING COLOR STEEL ...