Another method is to use the so-called mechanical welding. It uses special parts that are prepared in advance to connect the two ends. Thanks to this, you can connect two ends of the cable with a ready-made splice, without the need to use an optical fiber splicer. How to weld and join boxes together beautifully and quickly Are you looking for a way to weld and join boxes beautifully and quickly? In this video, we'll. While this method may appear to be. It is a transparent wire made of glass fibre, used to transmit information using a laser or LED diode, which translates into an enormous speed of transmission. Fiber Distribution box. Keeping this page as a placeholder for now. Have any questions? Talk with us directly using LiveChat. 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.