| 摘要 |
The present invention relates to a pipe on which an anti-corrosion paint is coated for preventing corrosion. More specifically, the present invention relates to internal and external coating methods for a pipe, a pipe formed with a packing of a connection unit in one body, and a connection method thereof, capable of reducing construction costs by compulsorily inserting and connecting two pipes with a connection protrusion unit, which is formed with the anti-corrosion paint in one body, and improving workability; remarkably reducing manufacturing costs of the pipe by not requiring additional connection members or the additional packing as including the connection protrusion unit integrally formed with the anti-corrosion paint; and maintaining a connection state of a connection part between the pipes to be stable. |
