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drill pipe

мы специально поставляем бурильные трубы, УБТ, ВБТ, И ТБТ. Весь торар производится по трубованию API.



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至: DONGYING LAKE PETROLEUM TECHNOLOGY CO.,LTD
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drill pipe мы специально поставляем бурильные трубы, УБТ, ВБТ, И ТБТ. Весь торар производится по трубованию API.
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