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.

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