First, fix the distribution box or panel using an iron frame. The welding and bolt connection of the distribution box made by the distribution box manufacturer shall be firm, and the welding seam shall be uniform and smooth, without welding skin, welding penetration, air hole and other adverse phenomena; The bolt connection shall have flat and spring washer. Why is the welding process of metal distribution boxes extremely important? In the manufacturing process of metal distribution boxes, welding constitutes a critical stage following sheet metal cutting and bending. This step ensures the structural integrity of the enclosure by securely joining. Ever wonder how that metal box controlling your building's power actually gets made? Distribution boxes – the unsung heroes tucked away in utility closets or basements – are more than just metal shells. Assembly structure: it refers to the processing of sheet metal parts separately. Customers today not only care about the performance of the electrical panel but also the manufacturing process that ensures quality, safety, and durability.