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About product and suppliers:
        Alibaba.com offers 32,983 grade 7a virgin hair products. About 91% of these are hair extension, 6% are wigs, and 1% are toupee. 

A wide variety of grade 7a virgin hair options are available to you, such as free samples, paid samples. 

There are 32,997 grade 7a virgin hair suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and India, which supply 85%, 8%, and 6% of grade 7a virgin hair respectively. 

Grade 7a virgin hair products are most popular in North America, Africa, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,251 with Other, 1,958 with ISO9001, and 128 with GSV certification.