For UL1784 certified 3 hour fire curtain, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our UL1784 certified 3 hour fire curtain has been well received by many customers and enjoyed a good reputation in many countries. AC & DC rolling shutter door motor Automatic smoke curtain UL1784 certified 3 hour fire curtain have characteristic design & practical performance & competitive price, for more information on the UL1784 certified 3 hour fire curtain, please feel free to contact us.