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wxk760222 发表于 2013-1-16 22:46 40s/2跟60s/3线的粗细其实是差不多的,402代表40支2股并捻而成,603代表60支3股并捻而成,在纺织学角度讲纱 ...
546715894 发表于 2013-1-17 11:03 生姜还是老的辣!
wxk760222 发表于 2013-1-17 21:36 我还很年轻的好不好!
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