Ronchi rulings are bar and space square wave targets,consist of dark, parallel bars with widths that are equal to the distance between them. In any line grating, one dark bar and one blank space
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Bazhou Wanxin Industrial and Trading Co.,Ltd: We're well-known as one of the leading slitting line, cut to length, erw pipe mill, hot dip galvanizing line, steel slitter manufacturers in China since
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Shandong Crown Industry Co., Ltd.: We're professional carbon black, masterbatch, polyvinyl chloride, specialty carbon blacks, black masterbatches manufacturers and suppliers in China. Please feel free
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