Shielding gas

https://www.wikidata.org/wiki/Q491699

Field Hierarchy

Parent
Physics 33.6M papers	Chemistry 29.4M papers	Engineering 25.6M papers	Materials science 19M papers
Quantum mechanics 13.6M papers	Composite material 8.9M papers	Optics 8.2M papers	Mechanical engineering 5.6M papers
Metallurgy 5M papers		Crystallography 2.2M papers
Current
Shielding gas 3,756 papers
Child
Carbon arc welding 757 papers

Trends

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History