1.Use engineering ABS plastic material for processing, the side open installation method is flexible and convenient.
2.The air volume is optional,the size can be arbitrarily customized.
3.UV resistant and anti-aging. Long service life;
4.Double pulley guide damper design,effectively reduce the resistance and enhance the service life of the rope.
5.Better sealing, flexible opening.
6.Install protective net to prevent birds or other insects invasion.
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