[jianjianjiantong] an engineering industry full of curse!

Strengthen the safety management of divisional and subdivisional works with high risks, and highlight the dangerous factors such as lifting machinery, high formwork and deep foundation pit on the construction

High performance, weather resistance, heat reduction and dimming can reduce the acquisition of solar heat and ultraviolet radiation. Its color can be controlled by changing the stress applied on the

Understand the project legal person responsibility system and capital fund system, and distinguish the functions and powers of the project legal person; Understand the project supervision system, summarize the scope