Air&exhaust&duct 排热管
air exhaust duct 排气管 ; 排热管
connector of air exhaust duct 排热管接头
air-exhaust duct 空气出口管
exhaust air duct 排气道 ; 排气扇 ; 排气管道 ; 废气管道
exhaust-air duct 废气管道
Exhaust air duct tubes 排气风道管
The utility model relates to an exhaust duct that prevents head wind, especially to a movable air discharging door type one-way air exhaust device.
本实用新型涉及一种防逆风排风管，特别是涉及一种活动排风门式的单向 排风装置。
The invention discloses an exhaust air duct cleaning system, which comprises an exhaust air duct, a dust collecting device, and a collecting device.
本发明公开了一种排气风管清洁系统，该清洁系统包含排气风管、集尘装置以及收集装置。
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