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special operations vehicles
Roller shutter:The fixed seat of the new pull rod is provided with a lock, which is more simple and beautiful compared with the old one, and the lock core is more durable.
Scroll:The new scroll spring is improved, and with built-in bearing, the rolling door opens more smoothly.
Rain gutter: The new model is more beautiful and practical.
The new rubber strip replaces the brush, which is more beautiful, durable and better sealing.
The new mounting plate guide rollers have bearings, the shutter doors open more smoothly, and the old installation plate guide rollers have no bearings.
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