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一种耐冲击复合材料抽油杆

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Affilication of Author(s):材料科学与工程学院

Patent Applicant:zhubo

Type of Patent:实用新型

Application Number:201821035457.6

Number of Inventors:1

Service Invention or Not:no

Application Date:2018-06-29

Publication Date:2019-01-11

Authorization Date:2019-01-11

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