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

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.

50mm Venetian Blinds 1:9

50mm Venetian Blinds 1:4