... by extruding or co-extruding 2) lighter and stronger,fire retardant, 3) ideal for outdoor wall cladding Product introduction: WPC ... free foaming,wpc encrusted foaming.3,Its water-proof,anticrash,flame retardant(pass B grade),anti-corrosion,UV-protected,sound&thermal ... outdoor wall cladding,outdoor flooring and garden ornaments or accessories.5,Passed SGS,ROUHS test,environment friendly,wpc foam wall ...