... 2)fireproof, rotproof, moisture proof Guangmei Brand Type Square Ceiling are composed of decoration square panel, slot keel, uper ... Detail product description1) Material: aluminum alloy, the grade of alunimun alloy can be selected according to the actual requirements ... , polyester), rolling, laminating, metal anode oxidation treatment.5) Type of surface: can be pore panel or punching panel according to ...