Tyvek envelope the best protection of the inside product  
      The envelope manufactured by DuPont Tyvek exclusive shielding material is tenacious and durable. It can experience the test of various extreme conditions. It is light, water resistant, and tear resistant and can defend to pierce. It is not paper, but Tyvek to protect inside documents and goods which you want to protect  
     
  Envelope  
 
 
·Defend to piece, tough, material
  for environment protection
·Precise printing, a performance
  of international image of
  enterprise.
 ·Lightproof, safeguard correspondence
  secret
·Tear-resistant, guaranteed the perfect
  correspondence of long-distance mails
·Good water resistance, the liquid
  corrosion resistance
 ·Lightweight (1/3 weight of similar
  thickness kraft paper) to save the
  postage
 
 
 

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