... HDPE Looks like nature wood Lifetime: 20 years ISO, SGS, CE About WPC: WPC (wood plastic composite) ... teakwood, redwood, red, yellow. OptionalSurfaceSanding, brushing, embossing.ComponentPoplar wood fiber + HDPE + additives.Warranty 20 yearsCertificateCE, ISO, ... fully recyclable.2. With natural wood grain, color and texture, looks like nature wood.3. Waterproofing, fireproofing, Mildew- ...