The Pottery Studio glossary of terms and abbreviations
Alumina: Aluminium oxide. It is used to bed bone china in the biscuit firing. A fine white powder with a high fusing temperature. Antimony oxide
F250 Bolt Pattern - Ford Truck Enthusiasts Forums
The bolt pattern is 8×6.5". Most 3/4 tons and one tons from Ford, Chevy and Dodge used that bolt pattern from the ’70’s through the late ’90’s.