GB/T 25457-2010
ActivePiano pin block
钢琴弦轴板
Application Summary AI generated
GB/T 25457-2010 specifies the technical requirements, test methods, inspection rules, and marking for piano pin blocks, which are the wooden components that hold tuning pins in place. It is applied in the manufacturing and quality inspection of upright and grand pianos, ensuring the pin block's structural stability, pin-holding torque, and resistance to environmental changes. This standard is used by piano producers and testing laboratories to verify product consistency and performance in the musical instrument industry.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.