Corma's corrugators and designs have been influential in the plastic pipe-making industry, in particular the double wall pipe making system, double layer in-line coupling, a vacuum forming system, and a double layer bell and spigot coupling.
Corma's corrugators and designs have influenced the plastic pipe-making industry in so many ways. Without Corma, there may not have been a double wall pipe making system, double layer in-line coupling, a vacuum forming system, and a double layer bell and spigot coupling.