300mm Hollow Stainless Steel Ball Hollow Steel Ball, Metal Hollow Ball for Exhibition or Outdoor Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：2.43mm Low Carbon Steel Ball AISI1010-AISI1015 Abrasives Carbon Steel Ball/Steel Shot Ball for Steel Structure 0.058g Next：5/32′′ Precision G10 Chrome 52100 Bearing Steel Ball
