how to find the potencial client in the Optical Telecommunication Line?

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Are there any body would like to tell me some good search engines for seek the products and potencial clients? We are specialized in manufacturing the optical power meter,OTDR,fusion splicer,visual fault locator,optical light source,optical multimeter,..etc, our company website at www.tellid.cn/english .welcome to visit and leave some messages for me.thanks.