The S-basedNPK capacity enlargement leading to theincreaseofphosphogypsum in phosphoric acidproduction, mechanical faultsoccurred to the twin screw conveyor.
The art, selected by an associative link with Roussel's motifs (memories of childhood, optical enlargement, resurrection, mechanical, or the luxurious "land yacht" camper car Roussel used to travel the world) combines a diversity of styles.