I work for a company that makes precast concrete building decor.
we have molds made of rubber and/or fiberglass. and apply a layer of fiber reinforced concrete to them. about 1 inch thick. after the concrete cures we take the piece out and voila: a column or a fireplace mantle or many other things.
sometimes we use styrofoam to make pieces for the outsides of buildings and mostly casinos.
at one time or another I have done just about everything here.
I have made the master pieces to make molds off of. made molds, parts, done deliveries.
now im the autocad engineer.
thats fancy for: I spend most of my time now on the net.
before here I did the same thing for another company that closed and most of its employees formed the one im at now.
I have in some way been associated with making parts for almost every major casino on the vegas strip and have also done work on props that were in films.
Roman Industries - Architectural Products (if you want to see what i do.)