An educational visit of the students of the 3rd Year Process Engineering of the ESTI (Higher School of Industrial Technology) of Annaba Was carried out, Monday, 21/02/2022, at the Level of the Hall of the Pilots of the Practical works of our Faculty Of Process Engineering – Salah Boubnider Constantine 3 University, During Which The Students Followed Some Demonstrative Practical Work Concerning Our Different Specialties (Pharmaceutical Engineering, Environmental Engineering And Chemical Engineering).