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GZL series ISO & CE certified vacuum freeze dryer as ideal freeze drying machine,Website:http://www.toptiontech.com, is widely used in biochemistry, pharmaceutical, food industry, etc, such as freeze drying enzyme, graphene freeze drying, hemostatic cotton freeze drying, cordyceps freeze drying, dendrobe freeze drying and penicillin bottle freeze drying,etc.1.Stainless steel plates are imported, guarantee smooth finish of chamber. Ensure aseptic requirements.2.Shelf with high strength, pressure test can reach 0.3Mpa, durable for long time.3.Shelf by machine processing, ensure high demand of fl