1. Product details:
1).O.D: 2-3/8"-20" 
2).Grade:J55 K55 N80 P110 etc. 
3).Thread: special thread 
4).Standard: API 5CT

2. Abstract:
It is widely used by lots of domestic and foreign users for its excellent properties. Pipes' product line adopts advanced techniques. Especially it uses the advanced annealing furnace which is 60 meters long to issue pipes' better mechanical properties. Thread surface used nonstick deduction phaosphoting solution for phaosphoting that can make more than 4 times of breakout. All measuring instruments for processing and test are detected by the state-designated agencies on time.

3. Features:
High collapse casing, economic anti-CO2/H2S casing, anti-corrosion casing, super high intensity casing

4. Application:
It is widely used in the areas of oil casing and tubing in oil and gas well. Tubing is mounted in the production casing after the oil well is dig and cemented, it is seamless pipe to transport oil gas to ground surface.