B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D53/00—Making other particular articles
B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
Dispositif transporteur equipant une machine a mouler des matieres plastiques par injection et destine a evacuer les pieces moulees du socle de la machine
Machine et procede de fabrication de bottes de paille parallelepipediques de moyenne densite, botte de paille et element de construction de batiment en comprenant