China produced 1.58 million tons of ethylene in 1990, a 13.3 percent increase over the previous year. Although China has increased its ethylene production by several times since the 1980s, it still...
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China produced 1.58 million tons of ethylene in 1990, a 13.3 percent increase over the previous year. Although China has increased its ethylene production by several times since the 1980s, it still...