বাড়ি/পণ্য/বালতি দাঁত / অ্যাডাপ্টার/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