440HZ Tuning Fork Virbration Experimental Instrument with Wood Resonator Box + Knockerd Tuning Fork music_UK_update_2021 We are the leading company

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Spring: Nickel chromium alloy steel Different kinds of connectors Monochrome connector： Two-hole terminal Three-hole terminal Four-hole terminal Five-hole terminal Monochrome connector： One in one out terminal Two in two out terminal Three-in-three-out terminal Color connector： Two in two out terminal Three-in- three-out terminal Read more Wiring steps: Remove the outer skin of the wire for about 10mm Wiring steps: In turn

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440HZ Tuning Fork Virbration Experimental Instrument with Wood Resonator Box + Knockerd Tuning Fork music_UK_update_2021 We are the leading company440HZ Tuning Fork Virbration Experimental Instrument with Wood Resonator Box + Knockerd Tuning Fork Features: High quality physical experimental instrument, durable and practical. Two tuning forks of the same efficiency are made of the whole 45 carbon steel. The edges and corners are neat and the surface is chrome plated, the frequency is 440 cycles per second. The tuning fork set is used to demonstrate the resonance of sound in school. Can be used as