making glass (task 3)

Glass is one kind of material which generally used as utensil, for example; plate glass and bottle glass. Actually, making plate glass and bottle glass is not as hard as it seems because there are only several ways to produce them. First, we have to put some basic materials like sand, soda, and limestone into a furnace to melt them. Before we put them all in this apparatus, we need to make the materials in a perfect condition so we can make the best products. When the process in furnace is finish, the mixed material is flowed into two different pipes. The first pipe is to make plate glass and the second is to make bottle glass. For plate glass, we ought to roller it in order to make the shape of the glass is flat. On the other side, we need to mix the last mixture with air to make bottle glass. After that, we put that into removable mould until it hardened. Finally, the plate glass and bottle glass are ready to use.