کانال ویدیویی چین Beijing Holtop Artificial Environment Technology Co., Ltd
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Holtop Company Video

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June 25, 2025
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Holtop is the leading manufacturer in China specializing in the production of air to air heat recovery equipments. Founded in 2002, it has dedicated to the research and technology development in the field of heat recovery ventilation and energy saving air handling equipments for more than 20 years.
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July 29, 2025