With two manufacturing facilities, S.I.G.MA. GROUP is specialized in the production of refractory materials for the glass industry since 1990 and operates today on the five continents selling abroad more than 85% of its production.
Thanks to continuous investments, SIGMA GROUP has improved already widely used products like the specially grooved tube, the bonded high alumina for channel blocks and a high grade mullite as well as engineered a new structural design for the regenerator chambers.
Supplier of refractories for glass furnaces
Via Delle Grigne 12/A