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chenjianping 發(fā)表于 2013-6-29 20:13 是這樣的目前市面上的平縫機(jī)有針桿曲柄和挑線桿亂搭配的現(xiàn)象,我發(fā)現(xiàn)有挑線桿送線過(guò)多導(dǎo)致收線不緊的現(xiàn)象, ...
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