On the last one I finally noticed that manufacture tag exists already, but currently both tags only exist on three questions.
manufacture already has a somewhat ambiguous Wiki excerpt:
Related to the fabrication of products in space, or the techniques and logistics of production of rockets in series.
It mentions manufacturing in space, but it also talks about "techniques and logistics of production of rockets" without reference to doing it in space. So it seems like a dual-use tag.
Most uses of manufacture do seem to relate to conventional manufacturing on Earth.
The way I propose to resolve this is to move all questions about manufacturing in space to reduced-gravity-manufacturing and all questions about manufacturing on Earth of rockets or spaceflight-related items to manufacture.