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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 5437-1985 |
Document facsimile (group 3) Transmission requirement 话路传真 (三类机) 传输要求 |
China National Standards Transmission |
 English PDF |
| GB/T 3974-1983 |
Telephone Transmission interference allowances for long-distance high-capacity analogue microwave communication systems 大容量长距离模拟微波通信干线电话传输干扰容限 |
China National Standards Transmission |
English PDF |
| GB/T 3383-1982 |
Telecommunication Transmission unit--Decibel 电信传输单位 分贝 |
China National Standards Transmission |
English PDF |
| GB/T 2683-1981 |
Test chart for facsimile Transmission 传真测试样张 |
China National Standards Transmission |
English PDF |
| GB/T 1583-1979 |
Standard of colour TV image Transmission 彩色电视图象传输标准 |
China National Standards Transmission |
English PDF |
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