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There are a lot of people in the world is engaged in the long standing work, and the work is expressly forbid to sit, but if they are temporarily stand for a long time and the rest, it is easy to cause varicose veins, waist pain, etc. And the "deformation" chair just alleviate the symptoms, namely, relieve fatigue, and not in violation of the provisions of the can't sit.
Jiangxi University of Finance and Economics