All we use are imported food grade silica gel raw materials, which is an inorganic polymer colloidal material that is obtained by
polycondensation of silicic acid. The main component is SiO2•nH2O, accounting for more than 99%. The performance of silicone as
below : 1. nontoxic, odorless, safe and environmentally friendly; 2. high transparency and no discoloration; 3. good hand feeling,
good elasticity, and no deformation; 4. no cracking, corrosion resistance, tear resistance, cold resistance, high temperature
resistance; 5. long service life. 6. temperature range: -60~260°C; 7. hardness: 75HS±; 8. inner diameter: 10-12mm, outer diameter:
14-18mm.