GB 28019
GB 28019, Total:1 items.
The international standard classification for "GB 28019" includes: Jewellery .
The Chinese standard classification for "GB 28019" includes: Artistic handicrafts .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 28019-2011 Adornment - Determination of Chromium(Ⅵ) - 1, 5-Diphenylcarbohydrazide spectrophotometric method
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