Who We Are and Why Our Expertise Matters

Our journey began in 2010 with the establishment of Seven Refractories d.o.o., a fast-growing company specializing in the production of high-quality refractory monolithic materials and green resin-bonded taphole clay for blast furnaces.

As our clients’ needs evolved, it became essential to offer a complete package: engineering, materials, and installation services. Soon, we expanded into maintenance of reheating furnaces, runners, ladles, and many other refractory field, led us to develop the equipment and skilled teams required for blast furnace refractory relining.

After fifteen years of working inside blast furnaces, improving our installation techniques and upgrading our equipment, we are proud of our achievements and confident in calling ourselves a top player in blast furnace repairs.

In 2023, Seven Refractories was acquired by RHI Magnesita GmbH, a global leader in refractory products, solutions, and installation equipment—making us part of the number one company in the industry.

Starting in 2026, the installation department of the former Seven Refractories became a new, independent company dedicated exclusively to installation services: Sipra Service d.o.o., established in partnership with our Italian sister company Sipra S.p.A., a strong and experienced installation provider. This merger allows us to offer our clients not only in the steel industry but across any sector requiring refractory products a high-quality maintenance and installation service.

Contact us today—it's free of charge! 😉