Pure silicone heat shrinkable tubing not only has excellent properties of the silicone tube itself commonly resistance to high temperature,high pressure resistance,soft and elastic,and also have thermal shrinkage performance,excellent wear resistance and cutting resistance,corrosion resistance and chemical reagent resistance,Can be use for a long time under high temperature 200degrees celcius,widely used in military or commercial areas need liquid corrosion resistance under high temperature,resistance to fuel,lubricant,acid resistance and chemical solvents.