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GB/T 31004.3-2014 standard english preview version PDF file download



GB Standard Code GB/T 31004.3-2014
Standard Category China National Standards
GB Standard English Title Acoustics―Measurement of sound insulation in buildings and of building elements using sound intensity―Part 3: Laboratory measurements at low frequencies
GB Standard Chinese Title 声学 建筑和建筑构件隔声声强法测量 第3部分:低频段的实验室测量
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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