GSG offers PERSONAL SERVICE to the composite industry.
GSG is a manufacturer's rep company.


GSG represents many of the world's leading composite equipment and manufacturing companies.


Where in the world is John Green???
Composite industry news and events.


Please contact John today for more information.
John E. Green, President and Chief Sales Guy has formed his own company. John has over 17 years experience in the composite industry. GSG, Inc. offers the following personal services to the composite industry:
  • GSG, Inc. offering engineering services for filament winding, custom equipment for the composite industry and the World Filament Winding Federation (WFWF).
  • Bolenz & Schaefer offering the highest quality filament winding machines on the market today. The computer control system uses the 840D from Siemens. The winding machines also use motor and control units exclusively from Siemens. The offline programming software is CADWIND, from Material S.A.
  • Brenner International offering low cost composite equipment including preform machines, a line of SMC machines, collapsible mandrels, roving cutters, mixing systems and other composite related equipment.
  • Eastman Machine Company offering a wide range of automated cutting systems including static table cutting systems, conveyor cutting continuous feed systems, router systems, software systems and material handling systems.
  • EHA Spezialmaschinenbau offering impregnation systems, coating machines, dryers and ovens including chamber ovens, continuous heating ovens and circulation ovens.
  • Lynco Grinding offering a wide range of mandrels, including oval, rectangle, square, diamond, rhomboid, hexagon and octagon shapes. Mandrel material can be steel or aluminium with a wide range of surface treatments.
  • Material S.A. offering CADWIND pattern development software for filament winding. Material S.A. also offers complete engineering services for filament winding.
  • MJC Engineering and Technology, Inc. offering CNC metal spinning equipment and speciality machinery, retrofits and close-support field service.
  • Rocky Mountain Composites offering cost effective aerospace and aviation composite structures, large affordable composite parts for small aircraft and small affordable composite structures for large aircraft.
  • Schlesinger Maschinenbau GmbH offering a wide range of brush making machines. The Schlesinger brush machines use the most advanced CNC control system on the market today.

For more information please visit each company's web page via the links on the "Who We Rep" page.