1.588mm 1.688mm 2.38mm 4.76mm AISI420c SUS304 AISI316 Stainless Steel Ball Guangzhou Decok Steel Ball Co., Ltd. Base Info Description Pre：0.5mm 0.8mm 1mm Mini-Size Stainless Steel Ball (good quality) Next：(In Stock) 0.4mm 304 Stainless Steel Ball
