Punching

https://www.wikidata.org/wiki/Q11750728

Field Hierarchy

Parent
Engineering 25M papers	Materials science 18.5M papers	Composite material 8.7M papers	Mechanical engineering 5.5M papers
Metallurgy 4.8M papers
Current
Punching 98.5k papers
Child
Perforation 91.6k papers

Trends

Notes

History