5.5mm 4.5mm 100c6 G10 Bearing Steel Ball Changzhou Feige Steel Ball Co., Ltd. Base Info Description Pre：Yg6 Alloy Steel Ball 35mm 36mm 37mm 38mm 38.1mm Tungsten Carbide Wear Parts Hard Alloy Tungsten Carbide Ball Next：E52100 2mm G10 Precision Chrome Steel Ball
