Introduction:                                                                                   

        The testing method for the special index of fibre is according to ITU-T G.650.and Pull-Strain testing is compliant with IEC793-1-B1.Therefore,fibre optic cable can be meet or even exceed the current and recommended the application of all the performance requirements:Ethernet,ATM,Fibre Channel,FDDI,and so on.The form of cable included internet,distribution,indoor and outdoor.Can be used for horizontal,erect and trunk ducts application.