... engineering.export: Australia, Malaysia, Indonesia,Italy.... galvanized steel frame,steel ceiling and drywall systems,Used in construction engineering.export: ... Philippines, dubai, Brazil, Colombia, Bolivia, Italy, Chile, France... steel ceiling:Main channel:25x21x0.75mm,38x12x0.8mm,36x16x0.5mm,28x20x0 ... 8mm5,4/10/12/20 pcs for each package. Corner bead:angle bead :20x20mm,25x25mm,30x30mm,thinkness 0. ...