Mechanical future: the face of difficulties, we will never ever quit
Some days ago, Ludian County, Yunnan Province, the 6.five earthquake, rescue workers for the sand making machine to appear a mess, the National People's heart disaster, have donated relief supplies, state leaders Li Keqiang, but took the cause the disaster location, everywhere collapsed homes, in accordance with the newest news that the death toll as much as 600 people today have been missing more than a hundred, a thousand men and women were injured, but not the earthquake casualties because the earthquake occurred in crowded places, and poor housing earthquake, ways to avoid the occurrence of such disasters, not simply have to have the support of advanced technology, it is a lot more critical reconstruct houses shock resistance. It requires a great deal of high-quality sand and gravel aggregate help, with no the support with the very same sand gear. Who lives within the house, you need a lot of sand Constructing Material help for aggregate in the concrete is the essential aspec...