: Shandong China Coal Industry&Mining Supplies Group

Negative pressure air duct

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Shandong China Coal Industry&Mining Supplies Group

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Negative pressure air duct

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Negative pressure air duct

Introduction Application:used in coal mines, tunnels, underground local fan for positive pressure ventilation; air duct varieties: coated cloth duct by rubber coated cloth material into a positive ...

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Negative pressure air duct

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