... 4.anti-flaming,non-checking, 5.non formaldehyde. Description WPC square timber size length: design according to customers need. color twelve ... kangyijia WPC is totally maintenance free and there is no painting, preserving or oiling required, WPC product can be cleaned ... , anti-slip, less cracking, less warping, 5. Requires no painting, no glue, low maintenance 6. Weather resistant, suitable from minus ...