GB 12525-1990 Standard PDF file download ; GB 12525-1990 Standard english preview version download

GB Standard Code	GB 12525-1990
Standard Category	China National Standards
GB Standard English Title	Emission standards and measurement methods of railway noise on the boundary alongside railway line
GB Standard Chinese Title	铁路边界噪声限值及其测量方法
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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