- Standard: APi Spec 8C、GB/T19190
- Adopts high-quality structural alloy steel as raw material
- Safety Factor: n=3
- Working load limit: 30 ～150 US ton
- Manufactured by forging and welding
- Special heat treatment
- Non-destructive test is performed.
- Its strength is verified throughout 1.5 WLL tensile test.
- There are signs such as WORKING LOAD LIMIT marked on the link.
- Surface painted.
- It is applicable for drilling operation for fleet well and repairing well.
- Use in couple.
Description
