“seamless tube”可以造什么句，seamless tube造句

Perennial the same time, the company in charge of operating companies : Panzhihua (Chengdu), Baotou, Tianjin (large seamless), metallurgical Steel, Anshan, Baoshan, Hengyang and other steel seamless tube production quality.

Glass lubricated hot extrusion process is an excellent method of making seamless tubes of stainless steel, heat-resistant steel and nickel-based alloy.

Now the reserve amounts to 20,000 tons, over a thousand kind of models, are the national scale big seamless tube Support bases.

Tubing: usually round in cross-section, and also shaped in section. By the way of making, tubes can be classified into seamless tube, and welded tube.