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Patents

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过滤铝熔体中非金属夹杂物的涂层

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Type of Patent:发明专利

Authorization number:CN 1389435A

Service Invention or Not:no

Application Date:2020-05-13

Publication Date:2003-01-01

Authorization Date:2002-04-01

Publication Date:2003-01-01

Application Date:2020-05-13

Authorization Date:2002-04-01

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