"Silk Sewing " CNS Standards List| Cast iron | 1,10 Phenanthroline,monohydrate | Symbols Indication | Method test | Ballast high | 600V Grade | Safety requirements | Basic Environmental | |
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CNS 7275
2019 Edition Method of Test for Silk Sewing Thread è ¶çµ²ç¸«ç·šæª¢é©—æ³• |
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CNS 7274
2019 Edition Silk Sewing Thread è ¶çµ²ç¸«ç·š |
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