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copper bzn18-26 tajikistan

Common raw materials

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2020630 · C71519 BZn18-26 53.5~56.5 16.50~19.50 − ≤0.25 ≤0.5 0.8 2 [1] Tab.2 Main application classification of

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2022722 · BZn18-26 BZn18-26 GB/T 4423-2007 1 2 3 BZn18-26

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