Abstract: A container having the shape of a cylinder of a substantially horizontal symmetry axis, closed at its both ends with the bottoms comprising steps in which a body having the form of a pipe empty inside of a corrugated inner surface is manufactured so that a first set of spray nozzles arranged at various angles is introduced into a mold turning around its own axis and then an inner surface of the mold is sprayed, next a hole is cut out for an inspection manhole in the surface of the produced body, then the body is closed with the bottoms at both ends so that a bottom mold is placed at each open end of the body, a second set of spray nozzles arranged at various angles is introduced through the hole for an inspection manhole, and then an inner surface of the bottom mold is sprayed.