Authentic Material GCR15 steel material smelting quality High strict control of sulfur, phosphorus and non-metallic inclusions, to ensure high life of the product
High hardness, has high and uniform hardness after quenching and tempering, hardness value is HR063-65 has good tunability, high contact fatigue properties
High-precision Guiguo G10 | Advanced Equipment Precision Production Process Guarantee Each Steel Bead High Accuracy error is 0.001M
Bearing steel, not easy to rust / oxidation / our steel ball is made of high-strength bearing steel production surface through rust-proof treatment, not easy to rust