SUS 440c Stainless Steel Ball Material 11/32 Inch 8.731mm Steel Ball 9cr18mo Shandong Xinpai Steel Ball Manufacturing Technology Co., Ltd. Base Info Description Pre：SUS 440c Stainless Steel Ball Material 5/16" 7.938mm Steel Ball 9cr18mo Next：SUS 440c Stainless Steel Ball Material 3/8" 9.525mm Steel Ball 9cr18mo
