Car show with sales promotion girls attract more visitors, she could explain the benefits of the car, this car was designed with mig welding. She explained The primary advantage of MIG welding is that it allows metal to be welded much quicker than traditional welding "stick welding" techniques. MIG welding is useful because can use to weld many different types of metals: carbon steel, stainless steel, aluminum, magnesium, copper, nickel, silicon bronze and other alloys. This makes it ideal for welding softer metals such as aluminum. When MIG welding was first developed, the cost of the inert gas (i.e., argon) made the process too expensive for welding steel. However, over the years, the MIG welding process has evolved and semi inert gases such as carbon dioxide can now be used to provide the shielding function which makes MIG welding cost effective for welding steel.