Abstract 1.This study aims (1) to save energy in drying of raw materials (2) to reduce the cost of production (3) to help reduce air pollution.The experimental results showed that the invention1. The oven design environment. Overall, it was found that the size of the ovens, environmental protection, and ease of use at the highest level. Compared with the percentage of 4.37.2. The satisfaction with the performance. Overall, it was found that the real use and work safely at the highest level. Compared with the percentage of 4.77.3. Effects of processing problems and suggestions about the oven environment as follows.The problem of the design is the color used is not appropriate, the performance is not desirable in practice.Suggestions on design, is that materials should be used, the heat can with your bare hands ได้และ stand should have the strength not to swing.
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