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

"Composition marking " CNS Standards List

| Method test | Passive film | Determination Metal | Chemical Reagent | N Hexane, | Junction Box | Method Test | Textiles  |
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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