1, Door skins: 26 \25 \24guage galvanized steel material 2, Door core: poly foam, 3 Finish: prime coating, powder coating and pvc coating 4, Door edge: finger joint pine as door edge (galvanized steel edge is optional) 5, Door frame: galvanized steel, wooden jambs is optional (knock down packing, Wood block for the door lock hole) 6, Loading capacity: 770 Pieces/40HC or over 660sets (with lock ...