1. Standard: ASTM A193, A320 Stud Bolts
2. Grade: A193 Gr. B7, B7M, B8, B16, B8M, A320 Gr. L7, L7M
3. Material: Carbon, alloy, stainless, brass, etc.
4. Finish: Plain, black, zinc plated
5. Packaging:...Ningbo Beilun Milfast Metalworks Co.,Ltd
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