Dongguan Spering Industy and Trade Company Limited,a professional OEM and ODM factory,is one of manufacturer partners of Telecom company,specializing in access network products.With rich experience in communication network equipment,Dongguan Spering focuse on Hisilicon,ZTE,MTK,Broadcom,Realtek chips solution and mainly produces are ONU,CATV ONU,OLT,router and switch.Concentrating on optical network equipments producing for more than 8 years,Spering have have so many customers in China including China telecom,China Mobile and China Union.