AJ100A double-layer aluminum alloy shutter sheet has the effective width of
100mm, the thickness between double layers of 22mm. The design of unique
noise-elimination leather lace between sheets well realizes the silence at motion.
Thickened and widened aluminum alloy guiding groove reinforces wind resistance
of wide span door. It, as a good substitute for the old-fashioned factory building
gate, is mainly applicable to large-sized factory buildings and warehouses with
the operative width not more than 8,000mm.
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