1. Purpose for windows of civil architecture and R.C. architecture.
2. Components motor (tubular motor, 110V, speed: 100mm/second).
3. Main part: (frame, aluminum alloy, guide, and shutter).
4. Function safety and beautiful to look at.
1. Protection against typhoon and burglary. 2. High quality of sound insulation and waterproof. 3. Convenience: easy to assemble (fit for all kinds of windows). 4. Please refer to the attachment.