Explain the Material and Manufacturing Process of a  Pneumatic Tyre

Take a picture of any product, part of a product, or some component. Attach the picture to your worksheet submission, state what it is, and describe what materials the item in question is likely to contain, and what manufacturing processes have been used to produce it. The submission should be maximum 500 words. You can include additional images and diagrams as well as your main picture to help explain the manufacturing processes. You have freedom to pick what you want, however it should ideally be a component rather than an assembly. E.g. you shouldn’t explain the assembly of a mobile phone, instead you should explain how the screen or casing would be manufactured.