API 5CT Tubing
Oil tubing falls into three types: Non‑upset Tubing (NU), External‑upset Tubing (EU) and Integral‑joint Tubing (IJ).
All PRODUCTS
API J55 Oil Casing
Oil Casing is mainly used to support the wellbore,during drilling and after well completion,ensuring drilling operations and normal production of oil wells.It serves as the lifeline for oil-well operation.
Standard
API 5CT, GB, ISO11960, GOST
Steel Grade
H40, J55, K55, N80-1, N80-Q, L80-1,L80-9Cr, L80-13Cr, P110, Q125 etc
Thread Type
STC, LTC, BTC, XC and Premium connectio
API N80 Oil Casing
Oil casing serves as the lifeline of oil‑well operation. It is mainly used for oil & gas well exploration and transportation. It provides wellbore support during drilling and after well completion, guaranteeing drilling progress and normal operation of oil wells.
Coupling
Couplings include casing couplings and tubing couplings. As oil‑field drilling components, casing couplings serve for casing connection. Tubing couplings effectively prevent fatigue fracture resulting from stress concentration.
OUR ADVANTAGE
Original Manufacturer
We are original manufacturer of OCTG pipes in China. Large‑scale production helps us deliver cost‑effective casing & tubing products without compromising quality.
Reliable Components
We adopt premium steel base material from well‑known steel mills. Strict raw material inspection guarantees stable performance and durability of our oilfield tubular goods.
Certification
Our products comply with API‑5CT standard, supported by complete inspection reports. We strictly implement standardized quality management for consistent product quality.
Advanced Equipment
Our workshop is equipped with modern threading, heat‑treatment and NDT non‑destructive testing facilities. All products are processed in‑house to meet high‑grade oil‑field requirements.
Experienced Engineers
Our technical team has rich experience in oil tubular goods. Professional engineers supervise every production procedure to optimize product performance for various well conditions.
Professional
Focused on oil‑gas and geothermal drilling projects for years. We provide customized specifications, complete supporting solutions and efficient after‑sales service for global clients.
SALES NETWORK
ADVANTAGE
We focus on OCTG oil‑field tubular goods, and sincerely look forward to establishing long‑term cooperation with global partners.
40+
25%
30%
Countries
Repurchases
Referrals
Our oil casing & tubing products are exported to more than 40 countries and regions.
About 25% of business comes from repeat‑order clients, and 30% of new orders are sourced from customer referrals.
QUESTIONS &
We supply API‑5CT oil casing, tubing and couplings. Feel free to send your inquiry for quotation and technical support.
CALL US
+86 15822804425
CONSULTING


