CERTIFICATES
WISS holds the following certificates: ISO 9001:2015 and ISO 14001:2015, issued by Bureau Veritas Certification.
The certificates received prove that WISS works in accordance with the above standards, provides safe and high-quality products, places emphasis on effective customer service and cares for the environment. Moreover, WISS has been operating with the principle of "sustainable development" since its inception, thanks to which its activities allow for the interpenetration of three important levels: society, environment and economy.