| Material: | Carbon Steel |
|---|---|
| Type: | Round Head |
| Connection: | Welding |
| Head Style: | Round |
| Standard: | DIN, ANSI, GB, JIS, GOST, BSW, Visa |
| Grade: | 8.8 |
| Samples: |
Silver,gold,
|
|---|
| Customization: |
|---|
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