Thermal expansion is a processing method of carbon steel pipe, which is to process small-diameter carbon steel pipe into large-diameter carbon steel pipe. The mechanical properties of hot-expanded carbon steel pipes are slightly worse than those of hot-rolled carbon steel pipes.

Piercing is the first process of deformation of hot-rolled seamless steel pipe, and its function is to pierce the solid tube blank into a hollow capillary tube.

Non-magnetic galvanized seamless pipe is a common metal pipe with excellent mechanical properties and corrosion resistance.

Stainless steel seamless pipe is a long strip of steel with a hollow section and no seams around it. The thicker the wall thickness of the stainless steel seamless pipe, the more economical and practical it is, and the thinner the wall thickness, the higher its processing cost will be.

Resistance welding is a method of combining the workpieces and applying pressure through the electrodes, using the resistance heat generated by the current passing through the contact surface of the joint and the adjacent area for welding.

The steel pipes should be prevented from being damaged during bundling and transportation, and the bundling signs should be uniform.