Deng Xiaoping once said, "Science and technology are the primary productive forces." The development of the times cannot be achieved without the advancement of science and technology. As an industry closely related to human life,.......
The common cause of oil leakage of the reducer for the scraper is the phenomenon of oil leakage during the use of the reducer. In the event of oil leakage of the reducer, we can only understand the cause of the oil leakage. On the prevention, what is the main reason for the.......
The reporter learned from the Environmental Protection Department of Heilongjiang Province that in the future, Heilongjia.......
Wall switch material
1. Panel: Generally, PC material is polycarbonate. PC material is also called bulletproof rubber. The characteristics of impact resistance, high temperature resistance and dis.......
According to reports, in the last two quarters of 2009, India’s economic GDP increased by 6.3%, mainly in agriculture. As the country’s forest area increased, timber prices showed a good trend.
India's 2009 National Forest Report p.......