Shortly: How is glass tube produced? I'm currently working on a project, in which I am planning to use glass tubes of sizes 1.5m length, 1.8mm thickness, 4cm and 5cm outer diameters. It will be cost effective to produce my own glass tubes when I start the mass production of the overall product, therefore I'm planning to do so. However, I have no knowledge nor experience about glass tube production. I don't even know how to search for it by Google. Can you please help me by giving me a starting point about glass tube production? What machinery & tools will I need? How much money do I have to invest for this purpose? Any help will be appreciated.