The disposition of a U.S. real property interest by a foreign person (the transferor) is subject to income tax withholding (IRC section 1445). The transferee is the withholding agent. If you are the transferee, you must find out if the transferor is a foreign person.
Looking directly at the crucible when magnesium first reacts with oxygen can damage your eyes. 5 years ago Magnesium metal is burned in air forming magnesium oxide.
You can see the sand cut away here in the drag. The cope sand is rammed in as usual and it conforms to the shape of the drag just like with any other sand mold. Here you can see that. Here's the brass loaded into the crucible with the furnace blasting at it. I mainly used some fittings but I melted the bunny sign also. The lid is removed for the picture.