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About product and suppliers:
        Alibaba.com offers 5,570 plastic caps 18mm products. About 43% of these are lids, bottle caps, closures, 2% are wine stoppers. 

A wide variety of plastic caps 18mm options are available to you, such as screw cap, bottle stopper, and disc cap. You can also choose from plastic, aluminium-plastic, and glass. As well as from non spill, child-proof, and pilfer-proof. And whether plastic caps 18mm is pp, pe, or abs. 

There are 5,570 plastic caps 18mm suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of plastic caps 18mm respectively. 

Plastic caps 18mm products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 1,833 with ISO9001, 680 with Other, and 232 with ISO14001 certification.