cold work round bar steel O1/1.2510: Port:ShenZhen MOQ:20T Supply ability ... round bar steel O1/1.2510 product Specifications: 1.2510: Tool Steel, 1.2510 / O1 / SKS 3 / 9CrWMn, 1.2842 / O2, D2/1.2379, H13/1 ... 1. Tool Steel, 1.2510 / O1 / SKS 3 / 9CrWMn, 1.2842 / O2, D2/1.2379, H13/1.2344, A2, O1/1.2510, S7, L6 2. Size : Round ... delivery, excellent after-sales service cold work round bar steel O1/1.2510