Weihai City, CN
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Patent Application
Harbin Institute of Technology, Weihai
GUANNAN CHU
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Application
Harbin Institute of Technology, Weihai
Guannan CHU
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
