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标题: BS EN 14587-2-2009 Railway applications — Track — Flash butt welding of rail [打印本页]

作者: liuxilin1215    时间: 2017-3-6 15:45:56     标题: BS EN 14587-2-2009 Railway applications — Track — Flash butt welding of rail

BS EN 14587-2-2009 Railway applications — Track — Flash butt welding of rails Part 2: New R220, R260, R260Mn and R350HT grade rails by mobile welding machines at sites other than a fixed plant

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作者: admin    时间: 2017-3-6 16:59:00

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