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About product and suppliers:
        Alibaba.com offers 1,749 waterproof post box products. About 34% of these are mailboxes, 1% are packaging boxes, and 1% are waste bins. 

A wide variety of waterproof post box options are available to you, such as garden, postal service, and apartment. You can also choose from aluminum, stainless steel, and metal. As well as from free samples, paid samples. 

There are 1,753 waterproof post box suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Japan, which supply 99%, 1%, and 1% of waterproof post box respectively. 

Waterproof post box products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 376 with ISO9001, 164 with ISO14001, and 89 with Other certification.