... Bulk Density [g/cm³] Vickers Hardness [HV1] SBB Shot blasting beads Electro-fusing ZrO2 68% SiO2 32% 3. ... surface treatment: Shot blasting, shot peening in automotive, aircraft, shipbuilding, industries. Characteristics: Ceramic Shot-blasting Beads are a spherical blasting and peening ... fusion process at a very high temperature. Ceramic shot blasting Beads are extremely tough and fracture resistant, ...