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The raw material zinc ingots purchased by the company comply with the 99.995% zinc standard in the national standard GB/T470-2008.
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2017-06-27
The raw material zinc ingots purchased by the company comply with the 99.995% zinc standard in the national standard GB/T470-2008.
The raw material zinc ingots purchased by the company comply with the 99.995% zinc standard in the national standard GB/T470-2008.
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