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[国外标准] ASTM D 1900-94 Standard Practice for Carbon Black—Sampling Bulk Shipments

P:2008-09-27 11:58:53

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ASTM D 1900-94 Standard Practice for Carbon Black—Sampling Bulk Shipments.rar

ragging - 刻纹,刻槽<轧辊表面缺陷>;划伤,刮痕;凹凸不平的,粗糙的 (0) 投诉

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