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Certificate No. : 7176832, Patent No. : ZL 2017 2 1131428.5.

Date:2018-06-29 03:33:48      Clicks:371

In 2017, in order to improve the process and produce more accurately,Lianhong company developed an adjustable steel tube rust removal device.In April 2018, its obtained the Patent Certificate issued by the stateIntellectual Property Office of the People's Republic of China.

Certificate No. : 7176832, Patent No. : ZL 2017 2 1131428.5.


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