Furthermore, to meet the needs from market, it is helpful to reconstruct the existing longitudinally welded tubing mill in our country.
为满足市场对复合管的需求,对于我国直缝焊管机组改造有借鉴作用。
Furthermore, to meet the needs from market, it is helpful to reconstruct the existing longitudinally welded tubing mill in our country.
为满足市场对复合管的需求,对于我国直缝焊管机组改造有借鉴作用。
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