Yg6 Yg8 Alloy Steel Ball 2.51-46.01mm Tungsten Carbide Wear Parts Hard Alloy Tungsten Carbide Ball Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：High Hardness 5.556mm 7.144mm 8.731mm 9.525mm 12mm 15mm Tungsten Carbide Steel Ball Next：Custom Made Drilled Steel Ball Threaded Stainless Steel Ball M2 M4 M10 Carbon Metal Steel Ball with Hole Tapped Steel Ball
