Ningxia Biyuan Activated Carbon Co., Ltd. sells iron ore sand beads for polishing with low density, good roundness, no pollution or damage, and at the same time 20 to 30 times longer than glass beads, high efficiency, and long working time. Good toughness, low extrusion rate, reusable, it is energy saving and cost-effective. Main application 1. Aerospace equipment: aluminum alloys and titanium alloys, etc. 2. Metal processing: strengthening of mechanical parts, cylinder heads, surgical instruments, golf balls, artistic effects, beautification of aluminum alloys, dense plasma coating, cleaning or surface blasting, artificial joints, springs, gears, eyeglass frames. 3. Automotive industry: shock absorber spring surface fatigue, strengthening treatment. 4. Turbine industry: steam turbine blade surface treatment, strengthening treatment.