What are the Wood joining method in our production process of wooden displays

In our production process of wooden display and box , how to joined wood?? Normally there have the below 3 methods :

1. Docking: The end of a piece of wood simply rests against another piece of wood to form the correct angle. The two blocks are fixed with nails, screws, dowels or other things.

2. the splicing angle: add two pieces of wood at the corner, a small piece of wood after the short, and stick them at the corners. This method is often used to reinforce the splicing. Often in the manufacture of the best drawers When used at the bottom, enhance the drawer.

3. Cross-overlapping splicing: In the cross-overlapping splicing, a rectangular groove is dug out on the two spliced pieces. Thus, the boards are locked to each other. If the processing is fine, the depth of the groove should be cut to be exactly Make the seams level with the board.