1. 4-1/2" P110 LC API 5CT Casing Coupling.
2. Couplings are used to connect two joints of tubing or casing.
3. Technical Standard: API 5CT 9th or API 5CT 10th, API 15B or API 16B, according to the customers' request.
4. Quantity: As the customers' request.
5. Invoice: Based on actual quantity shipped.