Petite-Synthe (French pronunciation: [pətit sɛ̃t]; West Flemish: Klein-Sinten) is a former commune of the Nord département in northern France.
[1] In 1980, a large part of Petite-Synthe was detached from Dunkerque and merged into Grande-Synthe.
The factory belonged to Etablissements Decauville ainé, a French manufacturer focussing on the production and sales of narrow gauge railway material.
The plant produced narrow gauge railway equipment for the colonies.
Business took a turn for the worse with the manufacture of the footbridges at Roissy Airport, the construction of which was delayed, and with the cancellation of the delivery of railway equipment during the Algerian War.