| 摘要 |
A diaphragm for a speaker obtained by forming a diaphragm base by screen processing a mixture of carbon fiber, pulp and polyvinyl alcohol fiber as a binder in a manner similar to that employed for making paper, depositing a thermosetting resin on the diaphragm base by impregnation or coating, and subjecting the diaphragm base, on which the thermosetting resin has been deposited, to electroless plating to deposit a metal film in the interstices between fibers and on the entire fiber surface.
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