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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 6280-1986 |
Capacity series and frequency channels arrangement in 25 to 1000 MHz land mobile telecommunication network 25～1000 MHz陆地移动通信网的容量系列及频道配置 |
China National Standards net |
 English PDF |
| GB/T 6550-1986 |
Information processing -- 9-Track，127mm wide magnetic tape for information interchange recorded at 63rpmm， phase encoded 信息处理交换用9磁道12.7毫米宽63行/毫米调相制记录磁带 |
China National Standards net |
English PDF |
| GB/T 5444-1985 |
The test methods for the technical specifications of subscriber line signalling for automatic telephone switching network 电话自动交换网用户信号技术指标测试方法 |
China National Standards net |
English PDF |
| GB/T 5443-1985 |
The test methods for the technical specifications of ringing and tone for automatic telephone switchingnetwork 电话自动交换网铃流和信号音技术指标测试方法 |
China National Standards net |
English PDF |
| GB/T 5442-1985 |
The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network 电话自动交换网带内单频脉冲线路信号技术指标测试方法 |
China National Standards net |
English PDF |
| GB/T 5440-1985 |
Stereophonic broadcast magnetic recorder 广播用立体声录音机 |
China National Standards net |
English PDF |
| GB/T 3971.3-1983 |
The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network 电话自动交换网多频记发器信号技术指标测试方法 |
China National Standards net |
English PDF |
| GB 3971.2-1983 |
Interoffice junction digital line signalling system for telephone automatic switching network 电话自动交换网局间中继数字型线路信号方式 |
China National Standards net |
English PDF |
| GB/T 3848-1983 |
Hardmetals--Determination of (the magnetization) coercivity 硬质合金矫顽 (磁) 力测定方法 |
China National Standards net |
English PDF |
| GB/T 3660-1983 |
Unified weighting network for measuring video continuous random noise 测量视频连续随机杂波用的统一加权网络 |
China National Standards net |
English PDF |
| GB 3380-1982 |
Ringing and tone for telephone automatic switching network 电话自动交换网铃流和信号音 |
China National Standards net |
English PDF |
| GB 3378-1982 |
Subscriber line signalling system for telephone automatic switching network 电话自动交换网用户信号方式 |
China National Standards net |
English PDF |
| GB 3377-1982 |
Multifrequency register signalling system for telephone automatic switching network 电话自动交换网多频记发器信号方式 |
China National Standards net |
English PDF |
| GB 3376-1982 |
Inband pulsing single frequencyline signalling system for telephone automatic switching network 电话自动交换网带内单频脉冲线路信号方式 |
China National Standards net |
English PDF |
| GB/T 3290-1982 |
Dimensions and characteristics of magnetic tape reel for information interchange 信息交换用磁带盘的尺寸和性能 |
China National Standards net |
English PDF |
| GB/T 2789-1981 |
Technical requirements for network interface for the analogue microwave relay communication systems 模拟微波接力通信系统网路接口基本技术要求 |
China National Standards net |
English PDF |
| GB/T 2020-1980 |
Recording magnetic tape with 9 magnetic tracks， 12.7mm width and 32 lines/mm for informationprocessing exchange 信息处理交换用9磁道12.7毫米宽32行/毫米记录磁带 |
China National Standards net |
English PDF |
| GB 2017-1980 |
Covering technique of the medium-wave broadcastingnetwork 中波广播网覆盖技术 |
China National Standards net |
English PDF |
| GB/T 1989-1980 |
Methods for indication of the 7-bit encoding character set for information processing switching on 12.7 mm magnetic tape 信息处理交换用七位编码字符集在9磁道12.7 毫米磁带上的表示方法 |
China National Standards net |
English PDF |
| GB 2017-1980 |
Covering technique of the medium-wave broadcastingnetwork 中波广播网覆盖技术 |
China National Standards net |
English PDF |
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