Seamless steel pipes must be tested for mechanical properties. Seamless steel pipes are widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycle frames, and steel scaffolding used in construction. Steel pipes are used t

Seamless steel pipe occupies an important position in the national economy. Maybe friends don’t understand it very well, but it has been widely used in petroleum and chemical industries, bringing great convenience to people’s lives. . Seamless steel pipes are also divided into many categories, a