Glass fibers are inorganic, nonmetallic materials, generally derived from natural materials, such as quartz, limestone, sand, kaolin and dolomite, among others. With the development of modern material science and technology, several routes for fiber glass production have been invented. Among these routes, industrial production of glass fibers in combination with chemicals, such as boric acid, soda ash, etc. (as raw materials), is mostly preferred. In this route, the mixture is melted and simultaneously drawn, spun or drown into fine fibrous materials in a molten state under pressure. According to the composition and performance, glass fibers are divided into non-alkali, medium, high and customized or special glass fibers. Glass fiber has several properties, such as high temperature resistance, non-flammability, low hygroscopicity, corrosion resistance, high tensile strength, good chemical stability, good electrical insulation and thermal insulation, amongst others. Owing to these properties, fiberglass is prevalently used and has become an indispensable part of the consumer electronics, automobiles and tele-communications industries. Glass fibers can be made into various forms, such as yarns, fabric and belts, among others.