铁路固定设备。长期用铁路工具。钢轨钳。

Fixed railway equipment. Permanent way tools rail tongs.

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铁路固定设备。轨道设施和维护工具。声检测锤。

Fixed railway installations. Track service and maintenance tools. Sounding hammer.

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铁路固定设备。通讯和信号装置架空线路用器材。木电线杆钭撑用卡箍。

Fixed railway installations. Equipment for overhead electric telecommunication and signalling lines. Bracing collars for wooden posts.

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