In certain occasion, when people are passing by a curtain wall building, the cracking of the glass may cause the glass fragments to fall off and hurt people. What’s worse, it may even cause the wh...
In the 47th week of 2019 (2019.11.18-11.22), the national composite steel price index of Lange steel reached 149.8 points, up 2.79% from last week and down 3.63% from the same period last year.The...