บ้าน/ผลิตภัณฑ์/ฟันถัง / แอดป์เตอร์/20mm-150mm High Wear Resistance Grinding Steel Ball with HRC 45-55 Hardness for Long Service Life in Mining Equipment
20mm-150mm High Wear Resistance Grinding Steel Ball with HRC 45-55 Hardness for Long Service Life in Mining Equipment