Which is better, Shanghai Tunnel or Zhong Jian?

Built-in. Official website inquired that China Building was restructured by state-owned enterprises and Shanghai Tunnel was restructured by state-owned enterprises. China Construction has a better development prospect, greater room for promotion and easier. China construction has five insurances and one gold welfare, and the work is easy. There is no five insurances and one gold in Shanghai Tunnel, so it is tiring and there is night shift.