A formula of hard magnetic brake shoe material for mine hoist and its manufacturing method，ZL201410185567.0，2017-11-03

• Affilication of Author(s):School of mechanical and electrical engineering
• Type of Patent:Invent
• State of Patent:Authorized patents
• Service Invention or Not:no
• Authorization Date:2017-11-03
• First Author:Jiusheng Bao