... powder, bamboo powder, etc)10% chemical additives. (Anti-UV agent, Anti-oxidation agent, stabilizers, colorants, anti fungus agent, coupling agent, reinforcing agent, lubricants.)Surface ... and No pollution;Waterproof, Damp-proof, Anti-cracking, Anti-aging;Antiflaming, Anti-deformation;Resist Fungus & Mold, Resist Termites & Insects, Anti-acid;High-density Base Material, Clean ...