AH36 Structural steel for ships and marine engineering
(Jul 21, 2022)
AH36 Structural steel for ships and marine engineering......
BeiJing National Stadium
(May 18, 2022)
The national stadium (birds nest) is located in the south of the central area of Beijing Olympic park, the main stadium for the 2008 Beijing Olympic Games.The project covers a total area of 21 hectares with about 91,000 spectator seats.The......