Speed doors help ensure rapid logistical and vehicle movement across factories, logistics centers and industrial fields, prevent outside cold air from entering the inside, and maintain proper temperature and save energy. In fact, 60 percent energy savings are achieved, and external leaks such as noise, dust from the inside are prevented to help address the related complaints. The COAD speed door opens and closes quickly without any gap, so when the door is fully closed, it has a strong seal and acts as a space separation inside and outside. Most speed doors are made of aluminum, and each bolt has SUS-coated products, so it is installed externally and is semi-permanently available against snow, rain and wind. All of the COAD Speed Door products have acquired European CE standards and have been installed by several global companies, including SAMSUNG, SONY, Coca-Cola and 3M, as well in the world wide as Japan, Thailand and Vietnam. COAD provides more reliable service with