The seamless pipe is produced as high additional value product.

无缝管担当起开发高技术高附加值产品的重任。

Obvious economic and social benefit can be achieved by using ERW to substitute seamless pipe.

指出用ERW代替无缝钢管具有明显的社会效益与经济效益。

The process design of seamless pipe hot upsetting-extruding method for making flange was introduced.

介绍了采用无缝钢管热镦挤法兰突缘的工艺设计。

At last, the authors give a compensation principle for dimensional accuracy control of grooving kerf width with laser beam for seamless pipe.

最后提出了管材激光割缝时槽宽尺寸精度控制的补偿原则。

Since 2011 carbon and alloy steel seamless pipes for synthesis of carbon steel pipe and outer pipe project of Inner Mongolia Donghua Energy Co., Ltd.

2011年起供内蒙古东华能源有限责任公司合成碳钢管道和外管项目用合金管和碳钢管。