The diagram shows the production of a lead pencil and pencil cases that contain three main steps, which is forming the pencil leads and casses, drying the pencil lead and shaping both of the pencil lead and case.
Pencil lead was made from a graphite where the raw graphite turned into a graphite dough then inserted into a forming press machine and made into pencil lead.
The next step of the production is drying where the pencil leads is left on a 800 degree celcius heat. Furthermore the pencil leads will be combined later with the pencil cases and made into a finished pencil.
Pencil cases were made from a wood that take the outer side of it, then the wood is formed into a shape that follows the shape of the pencil lead and roll the pencil case outside the pencil lead to make a ready to use pencil.
