Description:wood-plastic composite stairs Eco-friendly,Waterproof,anti-UV,no glue, weather resistant,low maintaining cost WPC board is produced with materials: 1. 40% HDPE(Grade A recycled ) 2.50% wood/bamboo fiber 3.10% chemical additives (Anti-UV agent,anti-oxidation agent,stabilizers, colorant,reinforcing agent...) Application: outdoor landscape and environment layout,used for floor tiles, ...