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.
Double spring FGS traction system.
Snap-in side rails.
Motorized operating system.
Use 63mm thick tube, width not exceeding 4 meters,
length not exceeding 5 meters.
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