Aluminium
Still in use today, this particular exterior staircase was built as an exposition piece at our workshop in 1988. After a quick jet wash, one can only appreciate how well safety has been preserved over time.
Steel
On the contrary and for obvious safety reasons, we were recently asked to replace this old steel staircase for a client of ours. Although the stairs had been repainted at some point, rust still had a devestating effect over time.