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Sucker Rod Couplings, Anti-Wear, Spray-Welded, Small BoreManufacturer 
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Oil and Casing Sales
Glossary of Oil Casing Terms
- API: It is the abbreviation for the
American Petroleum Institute.
- OCTG: It is the abbreviation for Oil
Country Tubular Goods, which includes finished oil and casing pipes, drill
pipes, drill collars, couplings, and nipples.
- Oil Tube: A pipe used in oil wells for oil
and gas production, water injection, and acidizing and fracturing.
- Casing: A pipe inserted into a drilled
wellbore from the surface to act as a lining to prevent the wellbore from
collapsing.
- Drill Pipe: A pipe used for drilling
wellbores.
- Line Pipe: A pipe used for the
transportation of oil and gas.
- Coupling: A cylindrical body with internal
threads used to connect two threaded pipes.
With fast
delivery and high quality, we help customers reduce costs and increase
efficiency. Our vision is to build an international petroleum pipeline
equipment enterprise through integrity and innovation. We welcome leaders and
friends from all sectors to visit and cooperate for mutual development.
1. Since
2008, we have 17 years of experience, a registered capital of 11.18 million
RMB, an 8,000 m² workshop, and an annual foreign trade turnover of 20 million
RMB.
2. We
have import and export rights, ISO 9001 quality system certification, API 5CT
certification from the American Petroleum Institute, and multiple national
patent certificates.
3. Our
production workshop is equipped with several highprecision CNC lathes, thread
rolling machines, hydraulic pressure machines, and complete inspection
instruments.
4. Our
products include J55, K55, N801/Q, L80, and P110 oil casings, couplings, short
joints, and conversion joints.
5. We
maintain a stock of high corrosionresistant oil casings, including 80S, 90S,
110S, and L801Cr/3Cr/13Cr, with an annual inventory of around 2,000 tons.
6. We
provide processing services for special sealing threads, including direct
connection types, trapezoidal shapes, doublestep, and variable pitch threading,
producing tens of thousands of special couplings each year.
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