SS316 SS316L Stainless Steel Ball with Hole 8mm*2mm 14mm*4mm for Jewelry Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Non-Standard Needle Roller Bearing with Good Quality Next：Copper, Zin, Nickel Coating Steel Ball with Through Hole 50mm*4mm 50mm*6mm 30mm*6mm 30mm*8mm
