首页>
外国专利>
element of protection and safety for the quarries of railway rails used in overpasses or level crossings.
element of protection and safety for the quarries of railway rails used in overpasses or level crossings.
展开▼
机译:用于天桥或平交道口的铁路采石场的保护和安全要素。
展开▼
页面导航
摘要
著录项
相似文献
摘要
element (1) for railway construction, for the sealing of the hollow passage of the crown or flange of the railway wheel comprising a portion of the base (2) and (3), discrete structuresat intervals between them, stretching out vertically upwards, spreading out from the base and creating a support column.
展开▼