licensed projects: construction labor subcontracting; various engineering construction activities; construction project design; construction project supervision; sports venue facilities operation (excluding high-risk sports); residential interior decoration and decoration; professional construction operations; power facilities installation, maintenance and testing; building demolition operations (except blasting operations). general projects: landscaping project construction; sports field facilities construction; machinery and equipment leasing; building materials sales; building decoration materials sales; metal structure sales; general mechanical equipment installation services; power facilities and equipment sales.
