Dongguan City E-Tone Electronic Products Factory and Dongguan Sempur Elecrtronic Technology Co.Ltd are the brother companies. E-tone is a professional and experienced manufacturer of various kinds of PU products,It has been established in 2004, such as mouse pads, keyboard pads, wrist supporters, laptop sleeves, computer surrounding products, insoles, car seat cushions and relative human body hygienical products. And Sempur is a trading company, we sell all the products of E-tone. we has our own exporting & impoorting right. We are equipped with several relative production lines and we also have our owned engineering developing department which takes the responsibility of developing and upgrading products. Under the completed management system, each product we export is strict in quality control. That is why we enjoy a good reputation among our overseas customers. We have establi

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