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What are the standards for high-frequency and submerged arc welded steel pipes?
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What are the standards for high-frequency and submerged arc welded steel pipes?

2025-04-17

Latest company case about What are the standards for high-frequency and submerged arc welded steel pipes?

In terms of implementing conventions, both forms of steel pipes follow the same execution standards: GB/T3091-2208,GB/T9711.1-2011,GB/T9711.1-2001,API 5L PSL1,API 5L PSL2；

However, the certification certificates for these two forms of steel pipes are completely different. The high-frequency steel pipe certificate uses "ERW", and the submerged arc welded steel pipe certificate uses "ASWL".

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