Dust cover and seal with double protection, isolated pollution.
采用防尘盖和密封圈双重保护，隔绝污染。
The rugged construction is double-sealed to prevent water and dust ingress even during site wiring.
坚固的建筑是双重密封，以防止水和灰尘进入即使在现场布线。
The rugged construction is double-sealed to prevent water and dust ingress even during site wiring.
坚固的建筑是双重密封，以防止水和灰尘进入即使在现场布线。
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