  The earth's mantle is not made of metal but is a mixture of many somewhat molten rocks, most as oxides, meaning the mantle may be more oxygen than metal. The metals it â¦ has the most of are magnesium, iron, and aluminum. There's also lots of silicon, which is not really a metal. 6 people found this useful.
We are the leading aftermarket supplier of used cosmetic lasers and used aesthetic laser systems. The Cosmetic Laser Warehouse stocks a large selection of pre-owned cosmetic laser equipment and cosmetic laser handpieces. We are not medical laser brokers. Most websites on the internet are broker operated.
The main differences between the types of lasers have to do with wavelength. In other words, different laser wavelengths (colors of light) target different skin issues. Therefore, a variety of lasers are needed to treat a variety of skin concerns.