1. China's construction network, out of the first, click in, the first and second level can be queried. Enter the name of the enterprise can query the enterprise has been registered within the construction of what are the builders. If there is a builder specific information, enter the relevant information, you can also directly query the individual. 2. Provincial and municipal housing and construction department website, the national construction market supervision platform. These sites can check the construction personnel and the company's qualifications and performance

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