... wall siding Poplar fiber, HDPE Looks like nature wood Lifetime: 20 years ISO, SGS, CE About WPC: WPC (wood ... reinforcing agent, lubricants...etc.)Product Details: Product NameWPC wall sidingSizes128x23mm, 130x14mm, 140x21mm, 150x20mm, 157x21mm, 185x30mm, ... redwood, red, yellow. OptionalSurfaceSanding, brushing, embossing.ComponentPoplar wood fiber + HDPE + additives.Warranty 20 yearsCertificateCE, ISO, ...