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C0179500_866 Manganese Carbonate (Manganous Carbonate)《化学试药（碳酸锰）》.pdf 1

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C0179400_459 O P-Dihydroxyazo-P-Nitrobenzene (Magneson)《化学试药（邻，对–二羟基偶氮对硝基苯）》.pdf 1

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C0179300_459 Magnesium Sulfate《化学试药（硫酸镁）》.pdf 1

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C0128600_952 Method of Test for Soluble Ash of Leather《皮革之可溶性灰分检验法》.pdf 1

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C0128500_516 Method of Test for Water Soluble Substance of Leather《皮革之可溶性成分检验法》.pdf 1

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C0128400_923 Method of Test for Hide Substance of Leather《皮革之皮质分检验法》.pdf 1

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C0128300_317 Method of Dichloromethane Extract Test for Leather《皮革之脂肪分检验法》.pdf 1

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C0128200_488 Method of Test for Water Resistance of Leather《皮革耐水度检验法》.pdf 1

C0128200_488 Method of Test for Water Resistance of Leather《皮革耐水度检验法》.pdfC0128200_488 Method of Test for Water Resistance of Leather《皮革耐水度检验法》.pdf

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C0089600_459 Enamel Receptacle Plates《搪瓷盘》.pdf 1

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C0089500_431 Enamel Washing Basin《搪瓷面盆》.pdf 2

C0089500_431 Enamel Washing Basin《搪瓷面盆》.pdfC0089500_431 Enamel Washing Basin《搪瓷面盆》.pdf

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