... fibre+PVC 2.Waterproof 3.Easy to install 4.Recycable Water Proof and Anti-deformation WPC Railings 120*120mm WPC ... : 50% PVC 40% wood/bamboo powder 10% chemical additive ( colorants, coupling agent, stabilzers,blowing agents, reinforcing agents, lubricants,etc) Main ... material to timber, with natural wood feel 3.High function: water proof, damp-proof , insect prevention, 4.Human harmonious: zero ...