| After-sales Service: | According to Drill Bit Usage |
|---|---|
| Warranty: | According to Drill Bit Usage |
| Certification: | ISO 9001:2000 |
| Standard: | AISI, GB, API |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | CNC-Machining or Casting |
| Samples: |
according buyer requirements
|
|---|
| Customization: |
|---|
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