The plastic forming method of pulling metal billet through the die hole to obtain the same size and shape as the die hole is called drawing. Drawing is one of the main production methods of pipe, bar, profile and wire. Drawing production tools and equipment is simple, easy to maintain, in one equipment can produce multiple varieties and specifications of products, and products of precise size, smooth surface. Drawing equipment can be generally divided into pipe bar profile drawing machine and wire drawing machine.

Drawing machine is the equipment for drawing metal materials. The diameter of the metal material is changed by drawing to achieve the required diameter. The bar and pipe with different sizes and diameters can be drawn by means of air pull, head pull and other drawing methods and by changing the mold. The mechanical part is composed of unwinding machine, pre-straightening machine, combined drawing machine, horizontal straightening machine, vertical straightening machine, hydraulic shear, conveyor, special type cutting platform, polishing straightening machine, tilting device, automatic chamfering machine, etc