Interimsundersøgelsen viste, at der er væsentlig forskel på produktionsprocessen, for så vidt angår HPT og HSSWT, for sidstnævnte kræver flere komponenter og derfor andre produktionstrin end HPT.
It was established by the review investigation that there are significant differences in the production process of HPT and HSSWT since the latter need additional components and thus different production steps compared with HPT.