1. STANDARD: API 5CT,
2. MATERIAL: H40,J55,K55,N80;
3. SIZE: 9-5/8" = 244.5mm
4. LENGTH: R1,R2,R3 , as per order; THREAD: BTC, LC,STC
5. PRODCTION CAPACITY: more than 6000 Tons per month.
6. APPLICATION: used in petrol gas ,oil field casing steel pipe.