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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 1019 l( R% [2 a- V6 c8 D
99.99% Cu, Other elements including Ag, As, Sb, P, Te <.01% Total6 s/ t3 n& e1 p) @' ?" g
②一种是Tellurium Copper: CDA 145$ {8 s5 E! h9 U2 o
99.9% Cu (incl. Te), .004-.012% P, .4-.7% Te |
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