How to connect two 16 square aluminum wires?

Can be directly connected and fixed on the air switch. The method is as follows:

1. Peel off the insulation layer of the aluminum wire slightly, bend the exposed part of the aluminum wire head into a "U" shape, then connect the aluminum wire to the air switch terminal and tighten the screws.

2. Peel off the insulation layer of the aluminum wire a little more, bend the exposed part of the aluminum wire head into a circle, and unscrew the air switch terminal screw. Insert the round aluminum wire into the air switch terminal and tighten the screw.