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Copper wire is covered with protective layer of varnish. Winding Wire Coating Insulation Enameled Wire Insulation Varnish. Coil winder machine with jackshafts copper wire drawing die

视  频 ID：  1110757735
版      权：  AVChd
视频长度：  0:16
横纵比率：  16:9
所属分类：  工业 
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