YD/T 1686-2007.Speech Quality and Transmission Performance Requirements and Test...

行业标准2023.07.31

YD/T 1684-2007.Technical Requirements and Testing Methods for the Billing of the...

行业标准2023.07.31

YD/T 1682-2007.Testing Methods for CDMA Digital Cellular Mobile Communication Ne...

行业标准2023.07.31

YD/T 1683-2007.Testing Methods for CDMA Digital Cellular Mobile Communication Ne...

行业标准2023.07.31

YD/T 1681-2007.Technical Requirements for 2GHz cdma2000 Digital Cellular MobileC...

行业标准2023.07.31

YD/T 5172-2009.Provisional Specification on Engineering Acceptance for 800MHz/2G...

行业标准2023.07.31

YD/T 5173-2009.Provisional Specification on Engineering Acceptance for 2GHz WCDM...

行业标准2023.07.31

YD/T 5175-2009.Acceptance Specification of Engineering for Lightning Protection...

行业标准2023.07.31

YD/T 5176-2009.Acceptance Specification for Local Optical Fiber Cable Network of...

行业标准2023.07.31

YD/T 5171-2009.Provisional Acceptance Specification for Individuation Ring Back...

行业标准2023.07.31