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Chinese National Standards
中華民國國家標準
- Taiwan 台灣 -
　

"Composition marking" CNS Standards List

| Information security, | Circular Surface | Chemical Reagent | Method Test | Fire resistance | Reproducing Discrete | Household similar | Phosphorus Trichoride |
H-Non-ferrous Materials & Metallurgy
CNS 2968    2021 Edition
Composition and marking requirements for metals of jewelry
飾物金屬之標示及成分

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