China National Standards

China Wayside telephone Industry Standards English PDF List

  •  China " Wayside telephone" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    TB/T 2500-1994 (Wayside telephone equipment (wired) standard series and the main technical conditions)
    铁路区间电话设备(有线)制式 系列及主要技术条件    		 China Railway & Train Standards
    Wayside telephone
    English PDF

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