The rolling door (rolling shutter) is connected in series with multi-joint active door sheets, in the fixed slide around the scroll above the door.Curcurtains are usually widely used in shops. The shutter door plays the same role as the wall of horizontal separation, it is composed of curtain plate, seat plate, rail, support, scroll, box, control box, shutter machine, limiter, door lintel, manual speed clearance device, button switch and insurance device, generally installed in the inconvenient wall separation parts. Teencher Inspection team consists of professional quality control and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.