1. Specification: 5-1/2.
2. Grade: P110 HC.
3. Thread type: LTC.
4. Coupling Die-Stamping and surface marking : XZOE 5CT-1368 or depend on the customers’ demand.
2. Grade: K55.
4. Coupling Die-Stamping and surface marking : XZOE 5CT-1368 or subjected to the customers’ request.
1. Specification: 4-1/2.
2. Grade: P110.
4. Coupling Die-Stamping and surface marking : XZOE 5CT-1368 or based on the customers’ requirements.