Recently, Our company has successfully passed the stringent review and certification procedures of Germany’s Gütegemeinschaft Schwerer Korrosionsschutz (GSK), the authoritative association for heavy-duty corrosion protection. The company has officially obtained the GSK factory approval certificate and been granted the prestigious RAL-GZ 662 quality mark.

This authoritative certification fully verifies that HIWA Valve’s epoxy powder coating technology, as well as the heavy-duty anti-corrosion performance of its valves and pipe fittings, has reached the world’s top industrial standards. It serves as a powerful professional qualification endorsement, laying a solid foundation for HIWA Valve to further explore high-end fluid control markets in Europe and across the globe.

Click links to download the original certificate.

MCE-XZ- GSK Certificate_2026 EN FOWRY.pdf