High Quality corrosion stainless steel shutter door

◪1. There are many types of door, in which the closed door has good sealing, can prevent wind, dust, heat preservation, corrosion resistance. Door can also have fire-proof function after special treatment.
◪2. With advanced structure, complete function and overheat protective device, it can protect motor from damage when overload and high temperature.
◪3.Door power drive, light and flexible, upper and lower stroke by limit switch automatic control, easy to operate, safe and reliable. It can be operated manually during power outages.
◪4.The surface of the shutter door is treated by special electrophoretic, the luster is infinite, not easy to stick to dust, will not be corroded by the polluted gas, does not rust.