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About product and suppliers:
        Alibaba.com offers 5,639 yellow flask products. About 76% of these are vacuum flasks & thermoses, 4% are water bottles, and 2% are hip flasks. 

A wide variety of yellow flask options are available to you, such as free samples, paid samples. 

There are 5,639 yellow flask suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of yellow flask respectively. 

Yellow flask products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 351 with ISO9001, 198 with Other, and 99 with ISO14001 certification.