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Reliable API 5CT Tubing Coupling N80 Eue 3-1/2 Inch
US$20.00
1-9,999 Pieces
US$19.00
10,000+ Pieces
Sample price:US$20.00/piece.Request sample
Product profile
After-sales Service
12 MonthWarranty
12 MonthsManufacturing Process
CNC MillingModel NO.
N80 EUE 3-1/2 InchSurface Treatment
Without ProcessingOperation Pressure
1 PCSMaterial
Stainless SteelSurface
PhosphorizationSurface Protection
PaintThread
BtcTransport Package
Tray PackagingSpecification
8-5/8Trademark
east longOrigin
Tian JinHS Code
7307990000Production Capacity
10000Key features
Large Scale Production: Factory area 51,300 sqm with annual output of 3.6 million couplings.
Advanced CNC Manufacturing: Equipped with 66 precision CNC lathes and intelligent painting lines.
12 Month Warranty: Comprehensive warranty coverage for 12 months on all products.
Stainless Steel Material: Constructed from high-quality stainless steel for durability.
Surface Customization: Options available for phosphorization and paint surface protection.
Thread Customization: Custom thread options including BTC available upon request.
Global Market Reach: Serving North America, Europe, Asia, Africa, and Oceania markets.
Fast Lead Time: Peak and off-peak season lead times within 15 working days.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms 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. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.
Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.
CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.
R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.
Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.
Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.
Product Q&A
Q:What is the warranty period for the tubing coupling?
A:
We provide a 12-month warranty for all our API 5CT tubing couplings.
Q:What materials are used for the coupling?
A:
The coupling is manufactured using high-quality stainless steel.
Q:Can the surface and thread be customized?
A:
Yes, we offer customization for surface treatments like phosphorization and paint, as well as BTC thread types.
Q:What is the production capacity of the factory?
A:
Our automated production line can reach an annual output of 3.6 million couplings.
Q:How long does it take to deliver the products?
A:
The average lead time is within 15 working days for both peak and off-peak seasons.
Send Inquiry
*To:
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.*Content:
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