coil nails roofing

During this process, each time the wire is pulled over, the surface hardens due to the high friction temperature. So basically every time you pull it you have to annealing it in the furnace. On the one hand, it is to reduce the surface hardness. On the other hand, during the process of wire pulling, only the surface is deformed, and the center is unchanged. So there’s a lot of stress inside. Therefore, it is necessary to rely on annealing to eliminate the internal stress, so that the wire becomes soft again to eliminate the stress before being drawn again.

Steel mesh factory – improve the construction speed. Using electric welding to connect steel mesh can accelerate the construction speed. As long as electric welding connecting steel mesh is laid as required, concrete can be poured, eliminating on-site cutting, pouring, binding and other links. Can save 50-70 percent of the working time, greatly accelerate the construction progress, shorten the construction period.