Feature 1. The whole system without chain control and cord control, it's really safety 2. Pull down the lower beam, the roller blinds will fall, and stop when you release it: lift up the upper beam, and the roller blinds will rise, and stop when you release it. 3. Roller blinds can be stopped at any height. 4. By adjusting the number of pre tightening turns of boost spring the rising speed of roller blinds can be adjusted 5. The system is equipped with limiter, which can limit the up/down position of roller blinds. 6. The clutch used to mental-core technology

1. It can be pushed by hand or pulled by chain. During hand pushing the pull chain does not rotate. 3. Pull down the lower beam, the roller blinds will fall, and stop when you release it; lift up the upper beam, and the roller blinds will rise, and stop when you release it. 4. Roller blinds can be stopped at any height. 5. By adjusting the number of pre tightening turns of boost spring, the rising speed of roller blinds can be adjusted. 6.The system is equipped with limiter, which can limit the up/down position of roller blinds. 7. The clutch used mental core technology.

Feature 1. It can be pushed by hand or pulled by chain 2. During hand pushing, the pull chain does not rotate 3, Pull down the lower beam, the roller blinds will fall, and stop when you release it; lift up the upper beam, and the roller blinds will rise, and stop when you release it 4. Roller blinds can be stopped at any height. 5. By adjusting the number of pre tightening tums of boost pring, the rising speed of roller blinds can be adjusted. 6. The system is equipped with limiter, which can limit the up/ down position of roller blinds. 7. The clutch used to mental-core technology.

structure is small and compact,operation is flexible and convenient

100*100mm cassette system; compact and versatile for both indoor and outdoor use; Plug-in mount; Optional snap-in side rails, three-piece rails system; Hollow zipper guide rail for better strength; Using thick 63mm double-layer tube, the windproof roller blinds can reach up to 3.8m in width and less than 3.2m in height; The operating systems include chain control, hand push, hand crank, and motorized options, meeting the diverse needs of customers.

Spring roller blinds structure is small and compact,and the operation is flexible and convenient. Design of hydraulic brake for spring roller blind when the curtains go up, springback speed get slowtythe lower rail rests gently on the roller blind, avoid collision,and reduce noise during operation.

Feature： 1.Positive pull the chain, roller blinds down, reverse the chain, head only unlock, roller blind automatically up. 2.The system is equipped with retarder, and the roller blind rises automatically and stably. 3.Roller blinds can be stopped at any height. 4、By adjusting the number of pre tightening turns of boost spring, the rising speed of roller blindscan be adjusted. 5.1: 1.5 reduction ratio is adopted for the clutch making, which makes it easier to the chain. 6.The system is equipped with a limiter, and the roller blinds will automatically stop when it rises/ falls to a fixed position. 7. The clutch used to mental-core technology.

The WR120B windproof roller shutter system is used, combined with an electric and spring system； National standard grade 304 stainless steel wire rope traction, aluminum alloy threaded wire reel winding； Generally, 63 thick pipes are used； The width should be less than 3 meters and the height less than 4 meters. When the width is relatively wide, a support cloth rail should be installed in the middle, which can be installed either externally or internally.