... meter 4.. Color: white, black, bule, green, grey,red, etc 5. Available: Conductive corrugated sheet/board, Antastaticcorrugated sheet/board, Flame-retardant corrugated ... excellent. it iswater/heat-proof suitable for indoor/outdoor display board/advertisement. 3. Protection/buffer: the hollow structured of polypropylene ... forgreenhouse, farm, juvenile animal cozy room, etc. honeycomb embossed board