The transport and treatment method has the circuit boards or conductor foils transported horizontally through the transport plane. When even the circuit board is manufactured without displacing an organization by the same equipment by a conventional technique, a required carrying stability has not been given to the thin circuit foil. The required carrying stability is attained by directing an electrolytic flow 8 towards a material 1 in a mirror-image symmetry in the carrying direction 3. In the circuit board with the blind hole, an additional electrolytic flow 11 is directed towards the material 1 approximately vertically in the mirror-image symmetry for improving a substance exchange in the hole. The difference of static pressures according to the Bernoulli's theorem in an electrolyte onboth sides of the material for a penetration to the through-hole. A 'in-pipe pipe' structure is selected to washing pipes for the electrolytic flows 8 and 11 for attaining the length of an active region, in which the overall length of the equipment is kept constant and increased, particularly in the continuous equipment for an electrolytic treatment.