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异型钢轨技术条件
Specification of compromise rails
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弹条Ⅱ型扣件 第2部分:弹条
Spring clip-Ⅱfastenings Part 2:Spring clip
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弹条Ⅱ型扣件 第1部分:组装与配置
Spring clip-Ⅱ fastenings Part 1: Assembling and configure
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混凝土岔枕技术条件
Technical rule for the concrete switch sleeper
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螺纹道钉
Thread spike
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弹簧Ⅰ型扣件 第5部分:弹条Ⅰ、Ⅱ型扣件挡板座
Spring clip-I fastenings Part 5: Track insulators for spring clip-I, II fastenings
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