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The ERW longitudinal high-frequency welded pipes which adopt the international advanced FFX moiding technology, and removing inner burr technology online and offline technology (only one patent in China ), fill up the gap of China¡¯s top ERW longitudinal high-frequency welded pipes. The products include: oil tube, casing pipe, pipeline tube, and low pressure lliquid line, structure tube and etc. Our products are broadly used in gas transportation project, oil-gas field surface engineering, large oil-gas ware...
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