Hollow sheet has characteristics of light quality, easy process, solidity, pressure resistance, heat insulation, etc. Features:1 Feather light, durability, flatness, rigidity, structural strength and moisture resistance 2 Non-corrosive, non-toxic and chemical resistant 3 Easy to clean and maintain4 Color: white, red, blue, yellow, green,black,etc. Applications: 1 Advertising: Advertising boards, ...