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发表于 2011-2-12 16:43:05
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来自: 中国广东深圳
①一种是无氧电气铜Oxygen Free Electronic (OFE) Copper: CDA 101 b# J! y' Z, w E
99.99% Cu, Other elements including Ag, As, Sb, P, Te <.01% Total' [% Q6 g/ F, y6 ~! S/ o
②一种是Tellurium Copper: CDA 145+ X! V( E6 v" q h" w9 Y, x5 M2 f
99.9% Cu (incl. Te), .004-.012% P, .4-.7% Te |
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