There is a choice of 1~6 slots, the arc blade can adjust the direction of air blowing, but also can do the function of full closure. The maximum value is 3m. When the value exceeds 3m, splicing can be used. Can be used with plenum.

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  CMA metrological certification

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  National quality supervision, inspection and certification

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  China recognizes the joint symbol of international mutual recognition

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  China recognizes the joint symbol of international mutual recognition