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Limitation concentration of natural radioactivity in non-ferrous metal ores and concentrates products
Translate name
STANDARD published on 7.12.2006
Designation standards: GB 20664-2006
Publication date standards: 7.12.2006
SKU: NS-895498
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-07-26 (Number of items: 2 290 396)
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