• LSAW pipes, made by thick steel plates through compacting, are main pipeline products for long-distance transportation of oil, natural gas.

    直缝埋弧焊长距离输送石油、天然气主要管线产品,钢管钢板压制成形。

    youdao

  • LSAW pipes, made by thick steel plates through compacting, are main pipeline products for long-distance transportation of oil, natural gas.

    直缝埋弧焊长距离输送石油、天然气主要管线产品,钢管钢板压制成形。

    youdao

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