Plastic general that we are familiar with, and is used today are synthetic ด้วยฝีมือ human in the hundreds of years, for use in various aspects. Such as packaging, its equipment and tools.Will be back from the 1920s.Professor 1863 when manufacturing company in the United States billiard balls, 10 Award000 coins to those who can find a replacement material for use in making Ivory billiard balls In that time, a popular sports high. Why elephants in many African เอางา almost hunted to extinction. Mr. John Wesley(John Wesley Hyatt) carpenter, American is one person interested and try to find a material that can be used แทนงาช้าง. After the experiment for many years. One night, he had an accident with sharp injury hand while sawdust with glue.(colodion) medicine, which is made from nitrocellulose dissolved in ether and alcohol. And by chance he made a spill onto the desktop. When look back again found that the drug dry is a sticky sheet
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