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GB/T 4920-1985 standard english preview version PDF file download

GB Standard Code GB/T 4920-1985
Standard Category China National Standards
GB Standard English Title Determination of sulphuric acidmist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method
GB Standard Chinese Title 硫酸浓缩尾气硫酸雾的测定 铬酸钡比色法
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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