公司产品性能稳定，刀刃锋利，焊口牢固，经久耐用。

Product performance is stable, sharp blade, welded joints strong, durable.

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然后用卷环机卷制成圆圈，用焊条把接口处焊接牢固，焊口处要进行X光谱检验。

Then use the coil ring machine rolled into a circle, with the electrode to weld the interface firmly, welding mouth to carry out X spectroscopy.

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