... , grey,red, etc 5. Available: Conductive corrugated sheet/board, Antastaticcorrugated sheet/board, Flame-retardant corrugated sheet, etc. Advantage of polypropylene fp ... excellent. it iswater/heat-proof suitable for indoor/outdoor display board/advertisement. 3. Protection/buffer: the hollow structured of ... workable forgreenhouse, farm, juvenile animal cozy room, etc. honeycomb embossed board