• Certificate for comprehensive quality control based on ISO 9001:2015
• Certificate RAL for constant and controlled quality of insulating glass
• IFT-Certificate for constant and controlled quality:
- Insulating glass
- Tempered safety glass
- Tempered safety glass with HST test
- Semi tempered glass
- Laminated tempered glass
• Certificate IGCC/IGMA for constant and controlled quality of insulating glass for USA