How to fix the aluminum profile frame without shaking

After some customers consulted and purchased industrial aluminum and aluminum profile accessories, they were unstable and dangling after they were assembled into a frame. They were worried that the aluminum frame would fall apart, and they were very worried about safety. Ask what aluminum profile accessories to use to fix the frame so that it won't shake? Today, I will tell you what accessories to use to fix the aluminum profile frame to be safe and stable.