Which one is better, Weifang Changwei Security Group or Chengtou Group?

Both companies are good.

City Investment Group is a company engaged in urban infrastructure investment, construction and operation. Founded in July 1992, it is a large-scale professional company authorized by the Shanghai Municipal People’s Government to engage in urban infrastructure investment, construction and operation. Investment Industry Group Company. The group has a registered capital of 3.08 billion yuan and total assets of approximately 75.57 billion yuan.

Weifang Changwei Security Group was established on October 26, 1994. The business scope includes security services, security inspection services and security system monitoring services, escort services, software development and related services; sales of security equipment, communication and photography equipment and clothing, etc.