Job Recruitment Website - Social security inquiry - Does the social security on the construction site include the social security of the factory?

Does the social security on the construction site include the social security of the factory?

The social security of the construction site is different from that of the factory. The social security of factory workers is five insurances and one gold, but the workers on the construction site will pay you pension, work injury, medical care and unemployment insurance. We didn't pay anything for security and cleaning in the property management company, saying that we were an outsourcing unit and we didn't know who to give it to. We only sign the contract every year and take it away after signing it. There is no official seal below, and we are not given a copy.