An extended slowdown in sales of cardboard boxes is intensifying concern that this holiday season will be a disappointing one for US retailers. US corrugated box shipments fell to the lowest ...
Abstract: With the acceleration of urbanization and the increasing complexity of social risks, the construction of efficient and intelligent urban safety emergency response system has become a hotspot ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback