1.ISO:9001 Certificate . 2.Professional Service 3.Calcined olivine sand for Foundry 4.High quality Applications:1.Foundry sand for carbon casting ,manganese steel casting and non- ferrous metals casting.Olivine sand is suitable for use in alkaline resin bonded system and produces a clean surface finish,making it sitable for foundry castings.2.EBT tap hole filler ,EBT sand,for electrical arc ...