Next By this reason, the factory has been fine-tuning the work continuing and serious, so often the standard of production has been modified in accordance with the progress of the processes of action every year, and may be used to modify the production standard is a progress indicator of the factory which is factory standard progressive modifications, monkan represents progress for commercial production a higher performance than modifying the terms recession etc. (2542 (1999) nat thaphan: 282 rest eternal, nan).
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