As different manufacturer uses different technology/standard to produce weather balloons, which may lead to a different neck diameter, but there is no effect on balloon performance, and just use an adapter/nozzle when inflating .We are also developing 300 gram and 350 gram balloons with small neck diameter size which will be suitable for all requirement in the world
We know most part of the enquiries are from open bid, that means there will be many companies to attend the same bid, we only cooperate with the qualified company who is closely related to meteorological department/air force and quote a very cheap price on our behalf.
All samples are available on our end, however we need samples cost and freight, which also can be refunded in future order.
Mostly we accept TT payment, however if the payment is fulfilled by government, we also accept sight irrevocable L/C payment, we can remit the commission to agent directly after receiving the payment from government.
Our warranty is 18 months if the balloons can be reserved under specified condition( a cool and dark room) and normal use , we will replace all defective products for our account .
Ningbo Yunhuan Group Co., Ltd.
Meteosky Technologies Limited
Add: Simen Town, Yuyao,Zhejiang,CN,315472
Contact Person: Mr.Jim shen