Acrylic Bathtub VS Fiberglass Bathtub. Both fiberglass bathtub and acrylic bathtub are the two most common bathtubs in the market. They are both molded plastic bathtubs. Acrylic bathtub has fiberglass in it, and fiberglass bathtub is made from more than just fiberglass.
Cold-formed steel (CFS) is the common term for products made by rolling or pressing steel into semi-finished or finished goods at relatively low temperatures (cold working).
Cold-formed steel framing. 1  S members are lipped channels, most often used for wall studs, floor joists, and ceiling or roof rafters. 2  T members are unlipped channels, which are used for top and bottom plates (tracks) in walls, and rim joists in floor systems.