Is the unit public pipeline maintained by the property?

This question is rather vague. "Main pipeline of unit building" includes several projects with different division of responsibilities:

First, the main gas pipeline belongs to the municipal public sector and belongs to the gas company;

Second, the main heating pipes,

If it is directly supplied by the heating company, the main pipeline shall be the responsibility of the heating company;

If it is the second mortgage of the property company, the property right belongs to the unit owner, and the property is responsible for maintenance, and the maintenance cost needs to be shared equally;

Three, tap water supply main pipeline

If it is a meter for one household, the water company is responsible for the maintenance;

If the property company collects water charges, the reason is the same as that of the main heating pipeline.

Fourth, sewage pipes

The property right belongs to the unit owner * * *, which belongs to the facilities used by * * *, and the property is responsible for the maintenance, and the dredging cost needs to be shared equally.

Verb (abbreviation for verb) rainwater pipe

Consistent with the sewage pipe.