JUNG Internal and Automatic Internal Grinders C8, CM8, C30, D7, D14, and D22 Catalogue JUNG Internal and Automatic Internal Grinding Machines: Detailed and well-illustrated Sales and Technical Specification Catalogue for the Models C8, CM8, C30, D7, D14, and D22. Manufacturers: Jung Models: C8 CM8 C30 D7 D14 D22 Contents: Catalog