Cast Stock

Cast Stock is one item across three cast forms - billet (600 units, 3 to a Sand Casting Long Cell pour), bloom (1000 units, 2 to a pour) and slab (3000 units, 1 to a pour) - and which form comes out is read off the Pattern used at the cell, the same way every other cast part is. The three forms do not substitute for each other: a recipe that names one of them wants that shape and not another.