Free Book Thor Spiral [PDF] - Online Library
Macchine a píù operazioni per l'inserimento di cerniere (forare, fresare, avvitare,
ecc.) Máquinas múltiples para encajar herrajes (taladro, fresado, atornillado, etc.)
Multistage hardware recessing machines (with drilling, milling, inserting, etc.)
Machines à poser les ferrures à opérations multiples (percer, fraiser, visser, etc.).
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