Children with microcephaly often have developmental issues. Generally there's no treatment for microcephaly, but early intervention with supportive therapies, such as speech and occupational therapies, may help enhance your child's development and improve quality of life.
Spool of .035 Aluminum Welding Wire is used with 100% argon gas. This is a 8 diameter spool with a center mounting hole that is standard 2 diameter. This wire is also great in a spool gun. Note that this is precision wound wire, verses random wound.
It comes out of the same nozzle your welding wire is fed through so it literally creates a protective cloud around the arc as you're welding. A MIG welder is also a wire-feed type welder. The metal that it uses to create the weld material is held on a spool inside the welder. The type of material it uses depends on what type of metals you're joining, but it's always a metallic wire. For beginners, or for welders who need ultimate portability, some welding wire contains flux inside it, eliminating the need for a separate tank of welding gas. This works, but is inferior to a proper gas setup.