Hantai basalt casing is made of high-quality 9 micron, 380tex basalt fiber, which generally needs processing and surface treatment. Because of its good electrical insulation, high temperature resistance and chemical corrosion resistance, basalt fiber bushing is suitable for insulating pipes of electrical appliances and motor coils; It can also be used for inner connecting wires and insulation pipes of various temperature resistant joints; It can also be used as the base material of fixed pattern pipe, brush hose and high temperature resistant composite pipe.