Custom Made Drilled Steel Ball Threaded Stainless Steel Ball M2 M4 M10 Carbon Metal Steel Ball with Hole Tapped Steel Ball Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Yg6 Yg8 Alloy Steel Ball 2.51-46.01mm Tungsten Carbide Wear Parts Hard Alloy Tungsten Carbide Ball Next：8mm 10mm 12mm SS304 SS316 Stainless Steel Threaded Balls for Jewelry or Toys
