IN PAST AGES OF DICOVERY FROM HUMAN HISTORY, SUCH AS THE IRON AGE OR THE COPPER AGE. MIXING METALS WITH OTHER METALS OR MATERIALS IMPROVED UPON THE ORIGINAL; CREATING STEEL, BRASS, OR BRONZE. IT SEEMS THE SAME PROCESS HAS HAPPENED WITH ACRYLIC PLASTIC. OTHER PLASTICS HAVE BEEN MIXED IN TO IMPROVE THE CHARACTERISTICS TO MEET CERTAIN MODERN DAY SPECIFICATIONS..
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.