Indeed the standards used for the design and implementation of hard tops are for Road Ranger Utility Volkswagen Germany is German quality, the finish is German (injected fiberglass, paint flawless, ...).
Evidenced: the internal memorandum of Service approval (cf. the four pictures of this news).
The full catalog is here.
For the RH3 model : see here
(nothing to do so, for confirmation, with products "Made in Thailand", proposed by D'Ieteren Belgium!)