Shape: square and rectangle Material:Grade AA aluminum alloy Thickness:0.4-1.2mm User type:special size, patterns,be ordered Manufacturing processThe artistic square ceiling surface is even, rich patterns, welds fine, which makes the whole ceiling regular, graceful, elegant, deluxe, and open. The ceiling has many merits, such as noncombustible, anticorrosion, and damp-proof. As every gusset plate ...