Precision Tubular Connections for the Oil & Gas Industry
Eastlong Tech delivers high-integrity couplings, crossovers, pup joints, and centralizers engineered for reliability in extreme downhole conditions.
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Eastlong Tech delivers high-integrity couplings, crossovers, pup joints, and centralizers engineered for reliability in extreme downhole conditions.
Hong Kong Eastlong Technology Co., Limited is a trusted manufacturer and supplier of premium tubular connections for the global oil and gas industry. Based in Shenzhen, China, we specialize in high-performance couplings, pup joints, crossovers, and centralizers designed to meet API standards and exceed field expectations.
With a commitment to quality, innovation, and customer service, Eastlong Tech serves drilling contractors, oilfield service companies, and energy operators across Asia, the Middle East, Africa, and the Americas.
Years of Industry Experience
Global Clients
Engineered for durability, precision, and performance in demanding oilfield environments. All products comply with API specifications and undergo rigorous quality control.
API 5CT compliant coupling for long round-thread casing connections. Ideal for high-pressure and high-torque applications.
Compact coupling for short round-thread casing. Designed for efficient make-up and reliable sealing.
High-strength buttress thread coupling for casing strings requiring superior tensile and compressive performance.
External-upset tubing coupling for seamless integration with EU tubing strings in production and injection wells.
Custom-length pup joints for adjusting casing and tubing strings. Available in various thread types and materials.
High-precision crossover subs for connecting tubulars with different thread types or sizes.
Bow spring and rigid centralizers for optimal casing alignment and cementing efficiency.
We manufacture custom couplings, adapters, and specialty connections to meet unique field requirements.
All products meet or exceed API 5CT and API 5B standards for quality and performance.
Fast and reliable shipping to North America, Middle East, Africa, Asia, and beyond.
Precision-machined components designed for long service life in harsh downhole conditions.
We support OEM/ODM orders and can manufacture to your exact specifications.
We use premium alloy steels such as 4130, 4140, and other custom alloys depending on application requirements. All materials are heat-treated to meet API specifications.
Yes, we provide OEM/ODM services and can manufacture couplings, pup joints, and crossovers to your exact thread type, size, and length specifications.
Standard products typically ship within 15-20 days. Custom orders may take 30-45 days depending on complexity. We offer expedited options upon request.
Yes, all our couplings and tubular products comply with API 5CT and API 5B standards. We provide full material test reports and certification documentation.
We implement a comprehensive quality control system including raw material inspection, in-process checks, final testing (dimensional, pressure, NDT), and batch traceability.
Contact Eastlong Tech for product inquiries, quotes, or technical support.
0086-150 1367 3350
Room 204 Building A17, Cuigang 4th Industrial Park, Fuyoung Street Baoan, Shenzhen, Guangdong, China
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