Shenzhen Nine Trust Technology Co., Ltd., founded in 1985, started from a small workshop, with the growth of business, we set up a research & design department and our own factory in 1990. For now the manufacture and sales system have operated for over 25 years, we still work stably, with skillful and experienced workers and professional sales. Of course, we have to thank the material suppliers. However it's just a necessary condition to act as your good partner. Actually the most important ...