... are one of the leading manufacturer in steel ball industry in China. 2.We have professional ... used in several industries, such as hardware, sliders, ball bearing lead screw, wheels, toys, bicycles, bearings, trust bearings ... BallCategory Stainless Steel BallMaterialSS304Size2.0 mmGradeG500Hardness ( HRC)HRC58-65ApplicationBicycle, bearing, pulley, slide, handcraft, shelf, luggage, hardware, grinding ...