China National Standards

China telcommunication—Part GB Standards List

  •  China "telcommunication—Part" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 12357.4-2016 Multimode optical fibres for telcommunication—Part 4: Sectional specification for category A4 multimode fibres
    通信用多模光纤 第4部分：A4类多模光纤特性    		 China National Standards
    telcommunication—Part
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