... 1)Good Concentricity 2)Excellent Endurability and Anti-aging Performance 3)Custom Design Zirconia Ceramic FerruleFeatures:1) Good Concentricity and Consistency ... ;2) Excellent Endurability and Anti-aging Performance;3) PC, Flat, Conical and Step End-face;4) Custom Design;5 ... ) Used in SC, FC, LC, MU, ST Connectors;2) WDM;3) CATV Zirconia Ceramic Ferrules