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How many quality inspection steps during production of seamless steel tube? This article is all about the quality inspection process let you know how important inspection is besides final goods inspection.

Do you think that the standard of environmental protection of a factory is only cleanliness of the factory? In fact, environmental protection involves how to deal with waste gas and water, and other hazardous substances produced during fabrication, and how to be environmentally friendly.

The seamless steel tubes used in automobiles usually need to be bent and top coated. It seems only oxygen-free annealing can solve this difficulty successfully. Is there a cheaper way to solve this? This is what this article about. Bending requires that the elongation of the automobile steel tube i