爱协林 发表于 2013-6-28 21:59:14

ASTM B122ASTM B122M-01铜镍锡合金、铜镍锌合金（镍银）和铜镍合金板、薄板、带材及轧

ASTM B122ASTM B122M-01铜镍锡合金、铜镍锌合金（镍银）和铜镍合金板、薄板、带材及轧制棒材
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