About the kind and characteristic of the Synthetic Resins :

• Polyurethane :

  Characteristic :
  It is soft it fits to the arm well because the elasticity is good. It is not much to shrink, and also become hard at a low temperature. Splitting it strength is excellent in aging nature, resistance oily, the wear resistance highly.

  
  
  
  
  
  
  
• Silicon :

  Characteristic :
  Because there are high heatproof nature and bearing the cold nature the use in the temperature range is possible and even the resistance medicine nature, transparent nature, harmlessness nature excellent.

  
  

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