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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 1018 D' S, b0 w& ~5 w h9 n
99.99% Cu, Other elements including Ag, As, Sb, P, Te <.01% Total+ a! P) y0 F d, o2 M( f. A" `
②一种是Tellurium Copper: CDA 1457 P3 r: O- O* D. f% I2 {
99.9% Cu (incl. Te), .004-.012% P, .4-.7% Te |
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