... WPC advantages:(1) Environmental friendly: there is no exhaust gas/waste water/off scum during production, and no formaldehyde/benzene when using ... Can be recovered then shattered to be used again.(2) Water-proof and moisture proof: Never to be rotten, inflation ... . The reason: plasticizing products, the expansion rate after absorbing water is only within 0.5%.(3) Fire retardant, self-extinguish ...