Shenzhen TYH Technology Co.,Ltd is a professional telecommunication manufactory, located in the new and beautiful city------ Shenzhen,China Shenzhen TYH Technology Co.,Ltd was founded in 2007, with almost 5 years export experience. We are specialized in manufacturing all kinds of telecommunication products, such as voip gateway, gsm modem and 3g router and many related products. Through the effort of our entire staff, currently, TYH Technology is already exported to ...