Tender For supply of development of earphone and microphone technology,fabrication of 300 ohm impedance electro dynamic earphone,fabrication of 300 ohm impedance electro magneticearphones,fabrication of 10 kilo ohm impedance and 1600 ohm dc resistance electro magneticearphones,fabrication of 19 ohm impedance electro_dynamic earphone,fabrication of 300 ohm impedance electro magnetic microphone,fabrication of 75 ohm impedance and 40 ohm resistance electro magnetic microphone,fabrication of 7.5 ohm impedance electro magnetic microphone,fabrication of 19 ohm impedance electro dynamic boom microphone,fabrication of 150 ohm impedance electro dynamic boom microphone
30 Apr, 2026
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