Interior door (MDF/PVC) usage :interior or outside function:no painting 1, Various ... radiant pollution formaldehyde, toluene, bad chemicals and so on6, PVC covered ob the surface and paint free7, Moisture proofing, ... deform8, Accessories: locks, hinge, screws, rubber seals, installation bolt9, Door leaf: Solid wood skeleton inside, MDF board for both side ... : 220 sets for 20GP, 460 sets for 40GP door