The muffler chamber is filled with 50mm thick centrifugal glass wool, and the outside is covered with glass cloth and (4mm aperture perforated plate). The keel is galvanized plate. No deflector when H<400 or W<250.

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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