CSN 42 3847-1976 Gold-zinc-nickel-manganese-copper alloy Au58 5 Zn4 9 Ni13 4 Mn0 2 Cu (purity 585 1000 Au)《金 锌 镍 锰 铜合金 Au58 5 Zn4 9 Nil3 4 Mn0 2 Cu》.pdf

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