ERW套管和无缝套管相比，具有尺寸精度高、焊缝韧性好、抗挤压性能好、质量易于控制以及成本低等优势。

ERW casing is applicated widely in oil and gas industry and substituted for seamless tubing for its high precision, excellent properties, easy controlling of quality and low cost etc.

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改造后的计算机系统顺利实现异种机之间的通讯和控制，大幅度提高了高附近加值无缝石油套管的的生产能力。

The new system has realized the communication and control for different kinds of computers. And the production capability of seamless oil casing tube with high additional value has improved greatly.

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