Хятад 30-40 торон дугуй элс эрэг голын элс Үйлдвэрлэгч, нийлүүлэгч … Main purpose 1. Epoxy floor: as the epoxy floor material, the round quartz sand has the characteristics of high compressive strength, high Mohs hardness of 7, round particles without sharp angle and flake particles to reduce the cost of adding resin.