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About product and suppliers:
        Alibaba.com offers 4,495 3d closure products. About 1% of these are hair extension. 

A wide variety of 3d closure options are available to you, such as free samples, paid samples. 

There are 4,495 3d closure suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 3d closure respectively. 

d closure products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,537 with Other, 505 with ISO9001, and 100 with BSCI certification.