Beijing Guohua Technology Group

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2015 China Coal Industry Patent Second Prize - Coal Slurry Thickener (International Engineering)

Classification：Qualification certificate Release time：2024-01-16 14:03:29

34-2015中國煤炭工業(yè)專(zhuān)利二等獎-煤泥水濃縮機（國際工程).jpg

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