"Piano " CNS Standards List| Test Code | Main Plates | Acetone | Quality management | Taper Pins | Tools pressing | Steel Wharf | Heat Treatment | |
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CNS 11035
2021 Edition Piano 鋼琴打弦器 |
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CNS 3290
2019 Edition Piano wire rods 鋼琴線 |
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CNS 3379
2019 Edition Piano actions 鋼琴線材 |
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