... .Professional Service 3.Calcined olivine sand for Foundry 4.High quality Applications:1.Foundry sand for carbon casting ,manganese steel casting and ... surface finish,making it sitable for foundry castings.2.EBT tap hole filler ,EBT sand,for electrical arc furnaces. size ... ,covering flux .3.Olivine Flour:-325mesh for foundry coating of manganese steel.4.For tundish coating mix and other application.