Glass fiber cloth
Glass fiber cloth is classified into high alkali cloth, medium alkali cloth and alkali free cloth according to the alkali content. The lower the alkali content, the better the flexural tensile strength. These cloths can be distinguished according to the conductivity. High alkali cloth is a conductor, can be used as a wire, medium alkali cloth is a semiconductor, non-alkali cloth is an insulator. Now the optical fiber used for signal transmission is glass fiber transmission, belongs to high alkali cloth, currently suitable for magnesite cement building materials is alkali cloth, alkali-free cloth for circuit board, electronic grade.