... bleeder vent,so good ventilation,water-proof,Anti-Crush 1) Door leaf : Solid fir skeleton inside, HDF boards for both ... fir skeleton ,filed with honeycomb paperboard6) Material of door frame: HDF board7)Surface:melamine8) Accessories: hinges, locks, handles, rubber seal9) Advantage: ... pieces/style12)Loading:240 pieces/20FT 500 pieces/40GPbathroom door 1)Solid fir and HDF boards filmed2)ISO9001:2000, ...