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Etymology The word polymer is derived from the Greek words – – poly- meaning “many”; and – meros meaning “part”. The term was coined in 1833 by Joens Jakob Berzelius, although his definition of a polymer was quite different from the modern definition. (see New chemical terms) Historical development Starting in 1811, Henri Braconnot did […]
30 years in China's recent development, often referred to a large population and great regional disparities, there will always subconsciously think that this is China's economic development problems, but in 2009, with the opening of Wuhan-Guangzhou high-speed rail , with the urban agglomeration, Wuhan City Circle, City Group to grow from the bud, when the […]
With the food, cosmetic and pharmaceutical industry, the rapid development, as well as packaging materials and processing technology continues to improve the field of flexible packaging in school is playing an increasingly more important role. Flexible Packaging has more than a bit, flexible packaging has barrier properties, easy printing, low cost, light weight, impact resistance, […]
To walk the streets of the capital will see, foreign trade clothing stores springing up, where you can Amoy to 8 dollars a cotton halter top, you can also buy the 200 one of the world's top brands. However, Moon Avenue's "trade" regular clothes are you? The clothing they come from? Recently, I visited a […]
In 2009, the National Print The annual conference, Hu, chairman and president of Color Group Co., Ltd. Mr. Chen Chengwen to "strategic transformation of the way chain" as the theme, vivid color business model described the tiger, another important change?? Tiger with the development of the text color? ? Standard color paper use the chain […]
