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).
Corrosionpedia explains Cold-Rolled Steel. Cold-rolled steel is produced in cold reduction mills where the material is cooled at near room temperature, followed by annealing and/or tempers rolling. This process produces steel that has a wide range of surface finishes and is superior in tolerance, concentricity, and straightness compared to hot-rolled steel.