Quick Details: Featuring: *This type of roller shutter opener is easy & convenient to use, it is suitable for 300-600KG roller shutter. *Copper wire motor, stable, durable & good in cooling. *High quality alloy steel gear, guarantee high lifting performance. *Low level noise & vibration. *Integrated circuit design, safe to use and easy to repair. *Service life of gear exceeds 40,000 times.
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