Light is everywhere. In the early days of human development, light has been used to transmit information. But at that time, the information capacity was very small and the limitations were very large. With the development of society, the a...
2019/09/22
Special cables are different from ordinary cables. Special cables can be used in special occasions, and their functions also have particularities, such as high temperature resistance, strong acid and alkali resistance, termite prevention a...
2019/09/22
