This item is solid iron ball, no quenching (no heat treatment). Hardness is low and easy to process, diameter tolerance 0.1mmor so, smooth and bright surface.Suitable for drilling, welding, casting parts, product weighting, teaching experiments and so on.
Application Areas: This product is widely used in bearings, motors, hardware and electronics, iron art, machinery parts, automotive parts, precision instruments, medical equipment, fishing gear, toys and other fields.
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On 01-Apr-2024 at 05:57:14 BST, seller added the following information: