... ,less cracking and warping;3. Durable,firm because of its high density,high sound absorption;4. No hazardous chemicals,excellent wear resistance ... cracks and no deformation,easy to clean and maintain and conserve,to save maintenance cost 8.Fire resistance,flame retardant,extinguish ... , 450 sets/40Ft, 500 sets/40HQ 9.Pictures all designs high quality interior wpc door for hotel, house,office, shoocl