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Foil balloons
Dec 08, 2017
  1. Foil balloons are made by metallic film. 

  2. Foil balloons have a variety of colors, designs and shapes. 

  3. Advanced technique, self-sealed, avoid leaking gas. 

  4. If filled with helium, 45cm foil balloons can float in the sky 7 day or so, 80cm foil balloons can float in the sky 15 days or so. 

  5. Because thermal expansiion and contraction,when filled with helium, there is differet from outdoor or indoor. Foil balloons show non full status when outdoor in winter, and full shape when indoor. 

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