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About product and suppliers:
        Alibaba.com offers 305 bd sm products. About 52% of these are fiber optic equipment. 

A wide variety of bd sm options are available to you, such as ce, ccc, and ce / eu. You can also choose from free samples, paid samples. 

There are 254 bd sm suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Bangladesh, and Jordan, which supply 88%, 10%, and 1% of bd sm respectively. 

Bd sm products are most popular in Eastern Europe, Southeast Asia, and North America. 

You can ensure product safety by selecting from certified suppliers, including 9 with ISO9001, 2 with Other, and 1 with OHSAS18001 certification.