B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C45/17—Component parts, details or accessories; Auxiliary operations
B29C45/26—Moulds
B29C45/2626—Moulds provided with a multiplicity of narrow cavities connected to a common cavity, e.g. for brushes, combs
Procédé de fabrication de pièces de carrosserie d'automobile, notamment d'aileron ou becquet arrière, et pièces obtenues par mise en oeuvre de ce procédé