China National Standards

China Public telecom network—Test GB Standards List

  •  China "Public telecom network—Test" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 40657-2021 Public telecom network—Test methods for smart home application
    公众电信网 智能家居应用测试方法    		 China National Standards
    Public telecom network—Test
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