How To Choose Aluminum Folding Door?

The folding door is mainly composed of a door frame, a door leaf, a transmission component, a rotating arm component, a transmission rod, an orientation device and the like.

This door can move the door to the side and takes up less space, so it is widely loved by consumers. But today's folding door brands are numerous, and the quality of the products is mixed. How should we buy high-quality folding doors?