Meteorological balloons 29,000 m

1. Balloons shall be launched promptly after gas filling, usually, the time shall not exceed 30 minutes. 2. Its forbidden to pool or rub balloon skin freely before using. 3. Balloons shall not be exposed to direct sunshine.

Meteorological balloon is made from 100% natural rubber latex compound with various of additives which can highly improve its resistance to high-low temperature, oxidation and ozone