We supply high quality premium grade 1 zircon sand (ZrO2 66.0%min), original from Cameroon1.This is 80-120M zircon sand.2.It is used in inner layer for shell-making.3.It is used in investment casting.1.80-120M zircon sand is used in investment casting, the processing is called dipping.2.It can enhance the shell`s thickness.3.It is specialize used in inner layer being mixed with silica sol.4.We supply competitive price.Also supplyRutile concentrateAntimony OreContact for more informatio