The high-end field of China's machine tool industry development

In 2014, the country will continue to grow steadily and adjust its structure. Under this environment, the industry must adjust its existing industrial structure and exert high-end on the basis of the existing mid-end results. On the one hand, it needs to face foreign products and joint ve.......

The working principle of stainless steel screw pump

Stainless steel screw pump uses the rotation of the screw to suck and discharge liquid. The middle screw of the stainless steel screw pump is the active screw, which is rotated by the original idea. The screw on both sides is the driven screw, and it rotates i.......