The cranes also encounter corrosive water from outside the weather - and the dam...

PeterisP on Aug 19, 2018 | parent | context | favorite | on: Stacking concrete blocks is a surprisingly efficie...

The cranes also encounter corrosive water from outside the weather - and the dam of a pumped hydro station doesn't need a full replacement after a couple of decades; a crane does after 15-20 years at the most.