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在线轨头淬火设备
met.
in-line rail head hardening equipment
(
By the end of 2009, we had completed installation of the 200, 000-tonne/year in-line rail head hardening equipment. 到 2009 年底,我们已完成了 20 万 t/ 年在线轨头淬火设备的安装。
)
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