2025-12-28 10.8.118.215
Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Code of China
Chinese National Standard List: Carrier communication equipment

GB/T 6555-1986 Requirements for 3-channel carrier telephone equipment on an open-wire pair 
  Issued on: 1986-09-02   Translation 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   Translation Price(USD): 264.0
YDJ 5-1985 Specification for Installation Design of Long-Distance Communications Carrier Telephone Equipment 
  Issued on: 1986-6-1   Translation 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   Translation 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   Translation 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   Translation 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   Translation 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   Translation 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   Translation Price(USD): 480.0
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 Email: coc@codeofchina.com | Send me a messageQQ: 672269886
Copyright: Beijing COC Tech Co., Ltd. 2008-2040