Qingzhou Huinong Machinery Co. , LTD, located in Qingzhou, Shandong Province, is specialized in production of the aeration-cooling and temperature-controlling equipments.
青州市惠农机械有限公司是生产通风降温、加温加湿设备的专业厂家，位于山东省青州市。
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DZQ series vacuum packing machine is semi-automatic vacuum packaging equipment. Order the assumed processes of vacuum extraction, sealing, printing, cooling and aeration.
Therefore, the problem of plastic shack at the subtropical zone in winter and spring and at the temperate zone in spring cooling down by natural aeration can be solved;