
1) Concrete
Found on
https://www.crosswordclues.com/clue/studcast

Studcast concrete, also called `pre-framed concrete`, combines relatively thin concrete layers with cold formed steel framing to create hybrid panels; the result is a panelized system usable for cladding, curtain walls, shaft walls, and load-bearing exterior and interior walls. Studcast panels install in the same manner as prefabricated steel st.....
Found on
http://en.wikipedia.org/wiki/Studcast
No exact match found.