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).
The hot rolled steel comes in plus minus 0.01 inches, or even more than that. On the contrary, the cold rolled steel comes in less than 0.01 inches. Another difference that can be seen between cold rolled and hot rolled steel, is that cold rolled steel has fewer carbon inclusions. 1. Hot rolled steel is obtained at a temperature of 1000 degrees; the cold rolled steel is obtained at 50 degrees.