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GB/T 5009.127--2003
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Determination of germanium in polyester resin
and products for food packaging
2003-0s-11·¢²¼ 2004-01-01ʵʩ
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GB/T 5009.127-2003
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GBT 5009.127-2003 食品包装用聚酯树脂及其成型品中锗的测定.pdf