Copper, Zin, Nickel Coating Steel Ball with Through Hole 50mm*4mm 50mm*6mm 30mm*6mm 30mm*8mm Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：SS316 SS316L Stainless Steel Ball with Hole 8mm*2mm 14mm*4mm for Jewelry Next：AISI304 SS316 Ss420 Ss440c Solid/Hollow Drilled Stainless Steel Ball with Hole 11/16" 17.463mm
