Lead
Of plumbago and lead pencil. May also be referred to as pencil lead.
Mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil.
This concept's ID is @1~19839
Of plumbago and lead pencil. May also be referred to as pencil lead.
Mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil.
This concept's ID is @1~19839