ETSCO & HYDETSCO Shaping Machines Models 2A, 2AU, 4A, 4AU, 4H and 6H Hydraulic Plano Shaper. Catalogues. ETSCO and HYDETSCO Shaping Machines Models 2A, 2AU, 4A, 4AU and 4H (2 editions of the latter) and the Model 6H Hydraulic Plano Shaper. Sales and Technical Specification Catalogues. 18 Pages. Manufacturers: ETSCO HYDETSCO Models: 2A 2AU 4A 4AU 6H Contents: Catalog