Piano. General specifications
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Piano. General specifications
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Frames of cast-iron pianos and grand pianos. General specifications
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Mechanical part and keyboard of piano. General specifications
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Parts and assembly units of wood for pianos. General specifications
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The piano repaired. Technical requirements and test methods
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Grand pianos. General specifications
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Instruments musical stringed plucked. General specifications
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Reed musical instruments. General specifications
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Electro-musical keyboard instruments. General specifications
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Electro-musical keyboard instruments. General specifications
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Piano. Quality requirements for certified products
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