... as the drying on the slice, strip, and grain material, especially for the vegetable and medicine, which has higher moisture, but the ... is carbon steel, packing with carbon steel and painting, the middle part is the thermal insulation, made of good glass cotton. b. The ... , the chain is working with cover for protection.f. Blower: 7 units circulation blower, and 1 unit humidity elimination blower.g. ...