BILCIA Lathes, Types 20, 25, M4 and M6 Catalogues BILCIA Precision Lathes (from Spain). Two Catalogues bound as one: 1) Types 20 and 25: Sales, Technical Specification and Accessories, 10 pages in English. 2) Types M4 and M6, Technical Specification and Accessories, 4 pages in Spanish. Manufacturers: Bilcia Models: Type 20 Type 25 M4 M6 M-4 M-6 Contents: Catalog