... galvanized steel and mirror aluminum, etc. Aluminum ceiling (clip in system and lay in system):1. The standard sizes see the chart below .2 ... coating,Oil Coating, PVDF Coating- Colour : The normal one is in white , but there are many colours can be chose , ... (mm)Length (mm)Thickness (mm)Hight (mm)Treatment in surface1Clip-in 600mm6006000.50~1.50 mm15~30 mmPowder coating,Oil Coating ...