The structure, working mechanism and laboratory tests of new type fast makeup casing heads are introduced. Field installation and applications of the casing heads are described in detail.
介绍了新型快装套管头的结构、工作原理及室内试验情况，详细叙述了该套管头的现场安装及应用情况。
Fast investment payback from fuel, cooling water and makeup water savings Durable, time proven designs, built to take the punishment of continuous, 24 hour a day service for years.
快速的投入回报，可以从节省燃料、冷却热水和节省补加水中收回成本经过长时间证明非常耐用，可以经年24小时使用。
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