The free anti-collision door is the most widely used free door in the industrial workshop. The door plate is made of stainless steel, and the two sides of the door body are added with anti-collision rubber plates. It has the characteristics of transparency, safety, lightweight, power free, noise-free, easy to install, easy to clean, corrosion-resistant and long service life. Widely used in electronic machinery, bioengineering, medical and health care, food hygiene, fine chemicals and other fields