I would like to give you a brief introduction of our company.Huailai Tianyuan Special Type Glass Co. Ltd is a high-tech company in the field of (3.3 series) borosilicate glass rod and tubing. we are the biggest manufacturer in China that can mass produce a complete specifications and colors.Now we have ten colors available:red,pink,green ,purple,light/dark blue,yellow,amber,opaque black, transparent black(new color) and clear. and some new colors are on trial now. By good credit and high quality of products and services, we have won trust and approval from both domestic and foreign clients.