It was reported that China's export of building materials in 1990 soared to US$1.2 billion, an increase of 23.8 percent over the previous year. Cement exports, for example, climbed from 436,000 tons...
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It was reported that China's export of building materials in 1990 soared to US$1.2 billion, an increase of 23.8 percent over the previous year. Cement exports, for example, climbed from 436,000 tons...