Lightning protection, grounding and equipotential construction 210909

Flooding accident occurred in the construction section of Zhuhai Shijingshan tunnel: the trapped people are still unable to contact

[case interpretation] a man gathered in Pengyang to obstruct the construction of the project, and another man helped him escape. Both of them were sentenced!

Construction procedure of hot mix asphalt pavement

[safety knowledge] construction season is coming! Protect natural gas pipeline~

40000 sets of 80G data: construction organization design//construction scheme//building code atlas//technical disclosure//bar chart//network

JGJ/T231-2021， Safety Technical Standard for Socket type Pan buckle Steel Pipe Scaffolding in Construction

[scaffolding] about scaffolding, you see, this is enough!