Créditos de imagens

Algumas fotos do site são de licença livre. Autores e licenças:

Fotografias de licença livre usadas no site
Imagem	Autor	Licença
Oil Platform Crew Transfer.jpg	GuavaTrain	CC0
Oil platform P-51 (Brazil).jpg	Divulgação Petrobras / ABr	CC BY 3.0 br
Irving Oil Refinery - Saint John, NB.jpg	Quintin Soloviev	CC BY 4.0
Canadian Kraft Paper mill.jpg	Quintin Soloviev	CC BY 4.0
Parque Cutia Freire Neto DJI 0048.jpg	Copel	CC0
Oil platform P-51 (Brazil).jpg	Divulgação Petrobras / ABr	CC BY 3.0 br
Ethanol plant in Minnesota	Wikideas1	CC0
Industrial pipes factory image	autor não informado	CC0
Canadian Kraft Paper mill.jpg	Quintin Soloviev	CC BY 4.0
Jet Turbine Blades	ahisgett	CC BY 2.0
Excavator - Open Pit Mining	ReneS	CC BY 2.0
Hip joint replacement, United States, 1998	Science Museum, London / Wellcome Collection	CC BY 4.0
Laserkop van Amada FO-4020NT 4kW, industriële laser.jpg	Contour	CC0
EHT-Biegepresse.jpg	Wolfgang Feld.	CC BY-SA 2.0 de
US Navy 090715-N-5821P-002 Aviation Support Equipment Technician Airman Anthony Hammond performs tungsten inert gas welding during a training evolution.jpg	U.S. Navy photo by Mass Communication Specialist 2nd Class Jason T. Poplin	Public domain
Machine traction gunt wp300.jpg	Cdang	Public domain
Digital Micro vickers hardness tester from EBP company, China.jpg	Hardness-testers	CC BY-SA 4.0
Charpy impact tester.jpg	Cjp24	CC BY-SA 3.0
MoriSeikiLathe.jpg	Glenn McKechnie	CC BY-SA 3.0
Pexels 38406567	Pexels	Licença Pexels (uso livre)
Pexels 14084303	Pexels	Licença Pexels (uso livre)
Pexels 36788832	Pexels	Licença Pexels (uso livre)
Pexels 5845951	Pexels	Licença Pexels (uso livre)
Pexels 37512427	Pexels	Licença Pexels (uso livre)
Annealing equipment-for-ambulant-heat-tratment-01.jpg	CEphoto, Uwe Aranas	CC BY-SA 3.0
Computerised Heat Treatment Furnance.jpg	S zillayali	CC BY 3.0
Heat-Treating-Furnace.jpg	Ichudov	CC BY-SA 3.0
Hot Iron - The rolling mill - geograph.org.uk - 3065000.jpg	Alan Murray-Rust	CC BY-SA 2.0
Pexels 28752150	Pexels	Licença Pexels (uso livre)
20251217 Face Mill in action.jpg	Progress and Poverty	CC BY 4.0