Quick reference manual for mandatory provisions of construction safety!


Very suitable for colleagues engaged in security collection! No,

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[construction qualification service center] welcome the national day and wish the motherland a happy birthday – good partner construction[construction qualification service center] welcome the national day and wish the motherland a happy birthday – good partner construction

In 2015, four design and construction integration qualifications of building intelligence, fire-fighting facilities, building decoration and building curtain wall were cancelled; In the same year, the qualification licensing authority cancelled