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About product and suppliers:
        Alibaba.com offers 3,888 28mm aluminium caps products. About 45% of these are lids, bottle caps, closures, 1% are wine stoppers, and 1% are other hats & caps. 

A wide variety of 28mm aluminium caps options are available to you, such as screw cap, disc cap, and twist off cap. You can also choose from aluminium-plastic, metal, and glass. As well as from bottles, vials. And whether 28mm aluminium caps is non spill, non-refillable, or child-proof. 

There are 3,888 28mm aluminium caps suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 28mm aluminium caps respectively. 

8mm aluminium caps products are most popular in North America, Western Europe, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,637 with ISO9001, 967 with Other, and 255 with ISO14001 certification.