2025-12-21 10.8.118.215
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 6555-1986 Requirements for 3-channel carrier telephone equipment on an open-wire pair 180.0 via email in 1~3 business day valid,,1987-7-1
YD 331-1987 General Technical Requirement for Supporting Carrier Communication Equipment for Standard Coaxial Integrated Communication Cables 264.0 via email in 1~3 business day valid,,1987-7-1
YDJ 5-1985 Specification for Installation Design of Long-Distance Communications Carrier Telephone Equipment 810.0 via email in 1~3 business day valid,,1986-6-1
GB/T 5445-1985 Specification for HF 12-channel transistorized carrier telephone equipment on an open-wire pair 410.0 via email in 1~3 business day valid,,1986-6-1
GB/T 5446-1985 Specification for 12-channel transistorized carrier telephone equipment on an open-wire pair 260.0 via email in 1~3 business day valid,,1986-6-1
GB/T 4770.1-1984 The test methods for 3-channel open wire carrier telephone equipment 904.0 via email in 1~5 business day valid,,1985-10-1
GB/T 4770.3-1984 The test methods for 60-channel symmetrical cable carrier telephone equipment 1344.0 via email in 1~5 business day valid,,1985-10-1
GB/T 4770.2-1984 The test methods for 12-channel open wire carrier telephone equipment 1064.0 via email in 1~5 business day valid,,1985-10-1
YDJ 35-1981 Technical Specifications for Installation Engineering Construction and Acceptance of Long-Distance Communication Open-Wire Carrier Telephone Equipment 480.0 via email in 1~3 business day valid,,1982-7-1
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GB/T 6555-1986 Requirements for 3-channel carrier telephone equipment on an open-wire pair 
  Issued on: 1986-09-02   Price(USD): 180.0
YD 331-1987 General Technical Requirement for Supporting Carrier Communication Equipment for Standard Coaxial Integrated Communication Cables 
  Issued on: 1987-1-7   Price(USD): 264.0
YDJ 5-1985 Specification for Installation Design of Long-Distance Communications Carrier Telephone Equipment 
  Issued on: 1986-6-1   Price(USD): 810.0
GB/T 5445-1985 Specification for HF 12-channel transistorized carrier telephone equipment on an open-wire pair 
  Issued on: 1985-10-17   Price(USD): 410.0
GB/T 5446-1985 Specification for 12-channel transistorized carrier telephone equipment on an open-wire pair 
  Issued on: 1985-10-17   Price(USD): 260.0
GB/T 4770.1-1984 The test methods for 3-channel open wire carrier telephone equipment 
  Issued on: 1984-11-28   Price(USD): 904.0
GB/T 4770.3-1984 The test methods for 60-channel symmetrical cable carrier telephone equipment 
  Issued on: 1984-11-28   Price(USD): 1344.0
GB/T 4770.2-1984 The test methods for 12-channel open wire carrier telephone equipment 
  Issued on: 1984-11-28   Price(USD): 1064.0
YDJ 35-1981 Technical Specifications for Installation Engineering Construction and Acceptance of Long-Distance Communication Open-Wire Carrier Telephone Equipment 
  Issued on: 1981-12-30   Price(USD): 480.0
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