... material Approved by ISO9001:2000 UV protection Force structure multi-wall Polycarbonate sheet (1) Specifications1). Thickness: 4mm, 5mm, 6mm, 8mm ... blue, green, red, smoke, opal, brown, yellow, etc.5). Large order, color and size can be custom-made. (2) Product ... Features Generally speaking, Compared to twin-wall sheet, multi-wall sheet has the features of higher shock resistence and ...