1. The frame is knock-down packing. (Theframe is plug-in type.). 2. Filling with poly foam. 3. Finish with PVC coating. And a lot ofcolors for choose. 4. Finger joint pine as door edge; Steeledge is optional. 5. Mainly exported to North America, Canada, Panama, Nigeria etc. 6. Load 750s sets of doors, frames andlocks into one 40HQ container. email:info10@chinametaldoor(dot)cn