What is the difference between the silicone tube and glass fiber casing?

Silica gel tube made of silicone rubber to double roller mixer or a sealed kneading machine, gradually add the white carbon black and other additives by iteratively refining a uniform, according to industry product technical standards, product made by extrusion. Silicone tube is widely used in modern industry, national defense industry and daily necessities. Can be used for conductive silicone rubber electronic industry.
      glass fiber casing traditionally dominated by white, the main material is glass fiber, through the wire drawing, weaving, and after completion of insulating varnish.