17.5mm 0.688inch AISI304 Stainless Steel Balls for Rollers 13G Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：15.8mm 5/8inch AISI304 Stainless Steel Balls for Ball Valves 16.393G Next：19.0mm 0.748inch AISI420/440/440c Stainless Steel Balls for Agitators, Sliding Rails
