I. Overview FJJ fire series of electric rolling door of our company's products. At home and abroad to learn the advantages of multiple advanced models based on the latest research and development of electric shutter doors, the product quality and reliable, full-featured, easy to install, is the ideal accessory products of modern architecture, the product can be used for left and right two installation form. Second, the working environment and working conditions: ☆ ambient air temperature changes with the seasons. ☆ relative humidity of 90% (25 ℃). ☆ short time working system, continuous operation shall not exceed 10 minutes. Third, the product features: ☆ delicate beautiful shape, compact structure, strong power; ☆ imported electrical components, security and stability; ☆ low noise, low vibration, low power consumption, light weight; ☆ easy installation, long life and reliability; ☆ easy manual operation during a power outage.