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| TB/T 2121-1999 Glass for Railway Ground Annunciator and Signal Indicator (English Version) |
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Detail of TB/T 2121-1999
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Introduction of TB/T 2121-1999
本标准规定了铁路地面信号机及信号表示器用玻璃(以下简称信号玻璃)的定义、分类、技术要求、试验方法、检验规则及标志、包装、运输、贮存。
本标准适用于铁路色灯信号机、臂板信号机、道口信号机及信号表示器使用的各种型号的玻璃透镜及平板滤光镜。
Contents of TB/T 2121-1999