Profile: Industria Zingardi S.R.L. produces hard & extra hard natural & synthetic dental stones (type II,III,IV,V A.D.A.). Our two main brands have been distinguished with selenor line for plasters and ceradent line for waxes. Our Zeta Opawax is an opaque wax, at low expansion and retraction. It is appropriately created for gnathological precision modelling of teeth. The different colours note the teeth structure in all its parts.