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Profile:Manufacturer - Producer|Ref:PSL23708YH | Country: China | Export: No
This two systems is Auto Fittings system, both fitting a spring system in the top tube. One call Auto Fittings, it include a auto control unit and tube, no chain to operate the blind extending and roller up. Easy operation is the main idea for designing this system. Other system we can it Auto and hand-brake system, it is controlled by a chain system, this system make the blind move by hand optionally.
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