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GB/T 5442-1985 standard english preview version PDF file download



GB Standard Code GB/T 5442-1985
Standard Category China National Standards
GB Standard English Title The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network
GB Standard Chinese Title 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
Chinese Version Price $15 USD per 50 pages
English Translation Price About $15  per 1 page; Inquire us for detail price

 
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