MAGNESIUM POUR FOR CASTING
Casting is the process of pouring liquid metal into a mold. The metal can be of any type. Our processes use alloys of magnesium and aluminum. Each alloy has its own unique chemical composition and properties. The alloys are chosen for each job on the basis of the properties needed for that casting.
http://en.wikipedia.org/wiki/Sand_casting
This link gives an overall discussion of the sandcasting process.