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GB/T 1819.12-2004 standard english preview version PDF file download

GB Standard Code GB/T 1819.12-2004
Standard Category China National Standards
GB Standard English Title Methods for chemical analysis of tin concentrates--Determination of silicon dioxide content--The silicomolybdenum blue spectrophotometric method
GB Standard Chinese Title 锡精矿化学分析方法 二氧化硅量的测定 硅钼蓝分光光度法
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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