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About product and suppliers:
        Alibaba.com offers 4,621 optical fiber diameter products. such as free samples, paid samples. 

There are 4,621 optical fiber diameter suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of optical fiber diameter respectively. 

Optical fiber diameter products are most popular in Western Europe, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,219 with ISO9001, 495 with ISO14001, and 346 with Other certification.