A call shop is a business that provides physical phones for the purpose of making long-distance telephone calls. There are two main types of call shop payment methods; prepaid and postpaid.
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H.K.Houyuan Technology Co., Limited was founded in 2009 with headquarter located in Shenzhen and branch office in HK ,suzhou. There are several departments such as VolP,RFID, consumer electronics , SMT produ