... construction engineering.export: Australia, Malaysia, Indonesia,Italy.... galvanized steel frame,steel ceiling and drywall systems,Used in construction engineering.export: Australia ... 1,Size 40*35mm,50x35mm, 70x35mm, 75x35mm, 100x35mm,2,lenght 2000-15000mm,3,zinc 50-275g4,thickness 0 ... Corner bead:angle bead :20x20mm,25x25mm,30x30mm,thinkness 0.2-0.5mmL/B stopping angle:30x6mm,30x10mm,30x13mm,30x16mm, ...