Umgca wokuvelisa ibhodi ye-culverted corrugated board sisixhobo esikhethekileyo se-culvert corrugated board compression molding, esetyenziswa ngokubanzi kwishishini lokwakha kunye nezinye izibonelelo, kubandakanywa iitonela zebhulorho kaloliwe, iitonela zebhulorho yendlela njl.