1, both soft and hard - made of high quality materials, with a certain mechanical strength, sio2 content is more than 68%, the hardness can up to 6-7 Mohs, and have enough elasticity, can be repeatedly used several times, not easy to break, the blasting device effect is the same, the fatigue life more than 3 times than the ordinary glass beads.  
2, good uniformity - roundness rate more than 80%, they have uniform particle size, the brightness of sandblasting device remains uniform, not easy to leave watermark.  
3, irreplaceable, shot peening glass beads as a kind of grinding material, more than any other grinding material has the following advantages: in addition to the metal grinding material, more than any other medium with long time, with the alkaline soda lime glass material, has good chemical stability, processing of metal, not pollution can accelerate clean-up, while maintaining the accuracy of the original object  
4, smooth without impurities - the appearance of spherical particles, no impurities;  The surface is smooth, with good finish, up to the international standard level