性欧美大战久久久久久久,久久国产精品_国产精品,久久久精品中文字幕麻豆发布,香蕉影院在线观看

Huaxin (Yangxin) 100 billion per year Aggregate Production Project

4-2.jpg

Huaxin (Yangxin) billion tons mechanism sand and gravel project designed by Wuhan Institute of Building Materials, which is the largest mechanism sand and gravel project in the world. The project, with a total investment of 10 billion yuan, started on December 28, 2020. The first phase of 50 million tons of annual production capacity has been put into production and is running smoothly, and the second phase of 50 million tons of annual production capacity is scheduled to be put into production at the end of 2023.


?