Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
YDJ 20-1988 Temporary Technical Regulation for Installation Design of Computerized Telephone Exchange Equipment $840.00 via email in 1~3 business day valid
YDJ 37-1981 Technical Specifications for Installation Engineering Construction and Acceptance of Urban Local Telephone Exchange Equipment $990.00 via email in 1~3 business day valid
YDJ 50-1988 Technical Specifications for Installation Engineering Construction and Acceptance of Urban Local Telephone SPC Exchange Equipment $540.00 via email in 1~3 business day valid
YDJ 7-1984 Specification for Installation Design of Crossbar System Urban Local Telephone Exchange Equipment $900.00 via email in 1~3 business day valid
YDN 065-1997 General Technical Specification for Telephone Switching Equipment of Ministry of Posts and Telecommunications (Including Appendix) $500.00 via email in 1~3 business day valid
YDN 067-1997 ATM switch technical specifications (Temporary Provisions) (internal standard) $2510.00 via email in 1~10 business day abolished
YDN 069-1997 Technical requirements and test methods for transmission and display function of telephone caller identification information $250.00 via email in 1~3 business day abolished
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