1). Side track and side seal: The side track fixed the vertical track, finger protection. The side seal avoid the wind the sand get into the inside room.
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2). Aluminum bottom rail and seal: The aluminum rail looks nice when put on the door panel, and the seal avoid the wind and sand get into the inside room.
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3). Torsion spring: spring is balance system; make the door easy to lift |
① spring |
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② galvanized spring |
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4). Anti-break system(security system): |
①spring anti break: |
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② cable anti break: |
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5). Window for choose: |
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Download:sectional door accessories.rar