Type "00" is the finest grind. In fact, Tipo "00" flour can be used for bread, pizza and pastry. The flour for the latter can be very light. The best, and pretty much most widely available Italian pizza flour comes from Molino Caputo, and is selected and milled to make perfect pizza.
Durum wheat semolina differs from common wheat flour both in terms of grain size and for its characteristic yellow colour also reflected in the products made from it. This flour is mainly used to make bread and pasta (both home-made and industrial), but also traditional cakes