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青本,打攬機(jī)的針桿高低,彎針和機(jī)針的標(biāo)準(zhǔn)位置,怎么調(diào)試? |
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|小黑屋|手機(jī)論壇|Archiver|縫紉客,工業(yè)縫紉機(jī)維修問答
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