References

Reference from AGC Flat Glass Bulgaria AGC Flat Glass Bulgaria ↗

Reference from Pilkington Pilkington ↗

Reference from Trakia Glass Bulgaria Trakia Glass Bulgaria ↗

Trademark registration certificate Patent Office of the Republic of Bulgaria ↗

Certificate No. 056 Bulgarian Doors and Windows Association ↗

ISO 9001:2015 Certificate RINA ↗

International ISO 9001:2015 Certificate IQNet ↗

Lacobel T Processing Certificate AGC Glass Europe ↗