干燥棚 drying racks
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项目内容：在现有厂房的基础上，扩建预留的三条FD真空干燥生产线共计增加棚面积600平方米。
The Project Content: Basing on the existing workshop foundation, expand three FD vacuum drying production lines, which was reserved before and totally increase the awning area for 600 square meters.
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