Owing to advantages of this welded tube category such as high geometric accuracy,fine surface quality and costeffectiveness,application scope of these tubes is getting wider and wider.

• 由于这些钢管的尺寸精度高、表面质量好、生产成本低，其使用范围不断扩大。国外电焊锅炉管的质量已达到无缝钢管的等效水平。