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Product profile
After-sales Service
YesWarranty
1 YearManufacturing Process
CNC MillingModel NO.
2-7/8"Surface Treatment
PhosphatingOperation Pressure
Atmospheric PressureMaterial
Seamless PipeProduct Name
Tubing CouplingSize
1.315-41/2"Thread
EU NuGrade
J55, K55, L80, N80, P110Used for
Pipe AdapterSurface
PaintingTransport Package
Wooden Case, Wooden PalletSpecification
1.315-20"Trademark
EASTLONGOrigin
Tianjin, ChinaHS Code
7307990000Production Capacity
100000*/MonthKey features
Wide Grade Selection: Available in J55, K55, L80, N80, P110, C90 and other standard grades.
Extensive Size Range: Couplings available from 1.315 inches up to 24 inches in diameter.
Multiple Thread Types: Supports NU, EU, NUE, EUE, TBG, UPTBG, and non-upset variants.
Custom Surface Treatment: Options include whole phosphating, inside phosphating, or outside coating.
20+ Years Experience: Manufacturer with over 20 years of history in production and sales.
Robust Manufacturing: Equipped with 106+ sets of manufacturing and 64 sets of test devices.
Flexible Packaging: Packing options include cartons, wooden cases, pallets, or custom requirements.
Professional Inspection: Dedicated professional inspection team ensures quality control.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤24hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP
AI-Powered supplier vetting
SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd., a manufacturer based in Tianjin, China, specializes in oil-related equipment and has been operational since 1999. They hold ISO 9001 and 14001 certifications and have a strong focus on innovation and intelligent manufacturing. The company is export-oriented, with a significant percentage of sales from international markets since it began exporting in 2019. It has a comprehensive service chain and aims for global brand recognition.
Supplier typeThe supplier is identified as a manufacturer, specifically a limited company based in Tianjin, China.
CertificationsThe company holds ISO 9001 and ISO 14001 certifications, indicating compliance with quality and environmental management standards.
After-Sales capabilityThe company offers full-cycle service for its products, suggesting a comprehensive after-sales service capability.
R&D capabilityThe company has over 30 independent intellectual property rights and has invested in intelligent manufacturing, demonstrating strong innovation capability.
Production capacityThe supplier operates 10 production lines with an annual output valued between US$10 million and US$50 million.
Customization capabilityThe company can provide design, development, and manufacturing services, indicating a high level of customization capability.
Product Q&A
Q:What grades of steel are available?
A:
We offer J55, K55, N80-1, N80-Q, L80, C90, and P110 grades.
Q:What is the size range for couplings?
A:
Couplings are available in sizes ranging from 1.315 inches to 24 inches.
Q:Can the surface treatment be customized?
A:
Yes, we provide whole phosphating, inside phosphating, or outside coating based on requirements.
Q:What thread types do you supply?
A:
We supply NU, EU, NUE, EUE, TBG, UPTBG, non-upset, and external-upset types.
Q:What is the warranty period?
A:
The standard warranty period is 1 year.
Send Inquiry
*To:
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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