China National Standards

China E27 GB Standards List

  •  China "E27" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 20144-2006 Barrel thread for E14 and E27 lampholders with shade holder ring
    带灯罩环的E14和E27灯座用筒形螺纹    		 China National Standards
    E27
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