Who is Rafat Amin from Miramar and what is their importance?

Rafat Amin is one of Sarhan al-Beheiry's friends from college. The two men later meet again at the Socialist Union hall, where Rafat is a member of the Base Unit at Amalgamated Metallurgies. Walking along the Corniche, they reminisce about life as Wafdist student committee members. Rafat then challenges the sincerity of Sarhan's attachment to Socialism and the Revolution.