Cover story
© Salzgitter AG-Konzernarchiv
© Wolfram Schroll
© csp_nerthuz – Fotosearch
© Maxiphoto – Istockphoto

App-based pipeline management
© Köster GmbH

Research & Development
© Salzgitter Mannesmann Forschung GmbH

Interview
© Wolfram Schroll

Offshoreday
© morkeman – Istockphoto, Wikimedia Commons – PR Allseas, composite: Kümpel Lorenz GbR

Copenhagen waste-to-energy plant
© realities:united
© MAN MADE LAND
© Bjarke Ingels Group
© ARC – Justin Hummerstun, Christoffer Regild

Vienna Technical Museum
© Technisches Museum Wien