Somua Z3CZ-ZHV3 Milling Machine Maintenance Manual Somua (H. Ernault-Somua) Z3CZ-ZHV3 Milling Machine. Parts Manual as Sectional Drawings. Manufacturers: Somua H. Ernault Somua H. Ernault-Somua Cholet Models: Z3CZ-ZHV3 Contents: Maintenance Manual