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一种组合可调式搅拌摩擦焊搅拌头

Release Time:2020-02-19  Hits:

First Author: Fuji Wang

Disigner of the Invention: 董丰波,马建伟,徐长玉,贾振元

Application Number: CN201310287588.9

Authorization Date: 2013-07-10

Authorization Number: CN103331516A

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