Through the contrast between national ERW pipe application and detail case with foreign country, the article analyzes the difference of national ERW pipe quality and oversea and its causes.
通过简述国内外ERW钢管的应用状况以及具体实例对比，分析了国内ERW钢管实物质量与国外产品的差距以及产生的原因。
Through the contrast between national ERW pipe application and detail case with foreign country, the article analyzes the difference of national ERW pipe quality and oversea and its causes.
通过简述国内外ERW钢管的应用状况以及具体实例对比，分析了国内ERW钢管实物质量与国外产品的差距以及产生的原因。
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