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For square tubes, everyone is familiar. In our lives, we can see them in many places, especially in industry and construction. However, some square tubes have a short service life. In fact, this It is inseparable from the daily maintenance and maintenance. In order to extend the service life of the
The use of square pipes has penetrated into all areas of our society, but steel products have a shortcoming that is oxidized and rusted, and corrosion protection is imminent. There are many anti-corrosion processes such as oiling, galvanizing, and spraying, each with its advantages and disadvantages