Add the flour and salt to a big pot, add water slowly when stirring with chopticks
Make them into a dough, cover with plastic wrap,let it rest for 20 minutes.
Make the dough into a thin cake with rolling pin
Stack the thin cake like a quilt, sprinkle flour every time you stacking
Then cut it into narrow strips with a knife,
Open narrow strips.
Boil or stir fry, or turn into all kinds of things you want.