4 1/2”Tubing with Hydril 533 Thread Analog 1. OD: 2 3/8 -7 5/8 inch 2. API Spec 5CT of the Latest Edition 3. Steel Grade: N80, L80, C95, T95, P110, Q125... 4. Special Grade: 1Cr, 3Cr, 9Cr, 13Cr, 22Cr…SS 5. Any questions feel free to contact Victor from Dynoland At present our company is the tier one supplier of China Petrochemical Corporation and we have been in this industry for more than five years, so we can provide the product with both good quality and competitive price.