drywall screw supplier

In the production of its own, to avoid injury, wearing the corresponding work clothes is very necessary, so that not only can avoid the occurrence of accidents, but also can better realize the production and processing of products. The application of black iron wire in the process is mainly through the hot metal billet rolled into a six-and-a-half-millimeter wire, and then put it into the drawing device to draw into different diameter of the wire, gradually reduce the aperture of the drawing disk, cooling and annealing, coating and other processes to make a variety of different specifications of the wire.