Did the steel production decrease or increased after ww2?​

Decreased.

Explanation

It's been decreasing for over 60years, Atleats what offical us staticis show.

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.