And another great load: refractory shipped on pallets, banded. The steel industry and foundries went through refractory like you wouldn’t believe.
There was a great “Mr. Plaster” load I made dozens of for this purpose.
They are indeed. The refractory more often.
I’d venture two to several times a year, up to a couple years, but an on-going process, with so many ladles in play.
They were sometimes made on-site, but there were off-line makers, including Pugh, Treadwell, etc.
Your last sentence implies that the ladles are a "consumable" that gets replaced
fairly often ... ?