SUNRISE is silicone duct hose supplier in China. The silicone ducting hose has excellent flexility. Double-ply silicone coated fiberglass fabric hose reinforced with a spring steel wire helix & external filament fiberglass cord.This confers onto silicone hoses a high degree of chemical and thermal resistance. These resistant properties make silicone hoses perfect for a variety of ducting. The high temperature duct is a good choice to use as silicone exhaust duct because it can withstand high temperature.