WPC interior wall panel Poplar fiber, HDPE Looks like ... reinforcing agent, lubricants...etc.)Product Details: Product NameWPC interior wall panelSizes128x23mm, 130x14mm, 140x21mm, 150x20mm, 157x21mm, 185x30mm, ... 225x16mm, OptionalLength2.2m, 2.4m, 3m, 3.6m, 5.8m, OptionalColorsGreen, brown, red, grey, black, red brown ... , anti-UV.4. Less cracking, less warping.5. No need painting, no glue.6. Can be ...