Izikhungo ku Pittsburgh vula Hot Metal St ube nesilinganiso esimaphakathi — 5 (ngokwezilinganiso zomsebenzisi Mapich).
Hot Metal St, Pittsburgh ezitholakele — ihotela, isibhedlela futhi ezinye izikhungo.
Le datha ikhiqizwa kusetshenziswa izihlungi zangokwezifiso ezisuselwe kukho 4 Izinkampani, eyethulwe kuleli khasi.