SUS 440c Stainless Steel Ball Material 1/4 Inch 6.35mm Steel Ball 9cr18mo G10 Shandong Xinpai Steel Ball Manufacturing Technology Co., Ltd. Base Info Description Pre：SUS 440c Stainless Steel Ball Material 6.0mm Steel Ball 9cr18mo G10 Next：SUS 440c Stainless Steel Ball Material 17/64" 6.747mm Steel Ball 9cr18mo
