Fabrication List Allen Steel Products : 15 × 2000 × 1500 mm — W01 1 × 1200 × 1500 mm — W02 3 × 1500 × 1000 mm — W03 5 × 1000 × 1000 mm — W04 3 × 500 × 1000 mm — W05 1 × 1500 × 500 mm — W06 Total: 28 Window Frames.