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A-share fiber optic concept stocks fluctuated and weakened, with FASTEN hitting the daily limit down, while ETERN, NanjingHuamai Technology, ZTT, SDGI, and Accelink all fell.

A-share fiber optic concept stocks fluctuated and weakened, with FASTEN hitting the daily limit down, while ETERN, NanjingHuamai Technology, ZTT, SDGI, and Accelink all fell.