Seamless steel ingot is made of perforated or solid through the capillary tube, and then by the hot-rolled, cold-rolled or cold

Seamless steel ingot is made of perforated or solid through the capillary tube, and then by the hot-rolled, cold-rolled or cold call is made. Seamless steel pipe with a hollow cross section, a large number of channels for transporting fluids, such as steel pipe and solid steel bar, compared with the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in oil and gas industries, such as drill pipe, petroleum oil pipe, oil and natural gas and so on.

Seamless Pipe