For this video of automatic noodles making machine production, you can see wheat flour is the main ingredient for making Asian noodles. The mixed flour is pressed into dough sheet by sheeting by two rollers. The sheeted dough is then slitting to produce noodles. You can produce different size noodles by changing cutting knife. The produced noodles can be ready for direct sale, or are through further process, like drying, to prolong shelf life of noodles.