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我是做热镀锌薄板的,刚刚接触这一行,coil和steel plate的区别.
还有secondery 是二手货,还是指次品?
人气:480 ℃ 时间:2020-09-20 04:45:58
解答
steel coil:钢卷; steel plate:钢板.区别在于前者是卷,后者是平板.
secondary stock:二级品现货.相对于正品[primary],二级品就是有缺陷的产品,外延比次品要大
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