Recycled WPC wood plastic wall cladding Poplar fiber, HDPE Looks like ... , anti-fungus agent, coupling agent, reinforcing agent, lubricants...etc.)Product Details: Product NameRecycled WPC wood plastic wall claddingSizes128x23mm, 130x14mm, 140x21mm, 150x20mm, 157x21mm ... , durable, economic, long lifetime10. Anti-slip, less cracking, less warping.Product Photos: