Powered by Made-in-China.com
API 5CT Tubing and Casing Crossover or X-Over Coupling2-3/8 2-7/8 3-1/2
US$12.63
500 Pieces
Sample price:US$50.00/piece.Request sample
Product profile
Warranty
1 YearName
API 5CT Tubing and Casing Crossover or X-Over CoupThread
EU NuGrade
K55 J55 L80-1 N80q P110Usage
Oil PipeTransport Package
Wooden BoxSpecification
2-3/8 2-7/8 3-1/2Trademark
EASTLONGOrigin
Puyang ChinaProduction Capacity
5000 PCS One DayKey features
API 5CT Certified: Authorized by American Petroleum Institute ensuring high quality and safety standards.
ISO Management Certified: Passed ISO9001, ISO14001, ISO45001, and HSE certifications for quality and safety.
Epoxy Coating Performance: Superior corrosion resistance with high adhesive force and electric strength.
Global Export Experience: Products exported to 31 countries including USA, Russia, and UAE since 2019.
Fast Lead Time: Peak and off-peak season production completed within 15 working days.
Diverse Payment Options: Accepts LC, T/T, PayPal, and Western Union for flexible transactions.
Comprehensive Product Range: Offers Tubing, Casing, Pup Joints, Couplings, and Down Hole Tools.
Warranty Coverage: Provides 1-year warranty for all mechanical equipment and products.
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 product?
A:
We provide a 1-year warranty for all our products.
Q:What are the available thread types?
A:
The product features EU Nu threads and is available in various grades including K55, J55, L80, N80, and P110.
Q:What is the production lead time?
A:
The average lead time is within 15 working days for both peak and off-peak seasons.
Q:Which payment methods do you accept?
A:
We accept LC, T/T, PayPal, and Western Union for payments.
Q:What certifications does the company hold?
A:
The company holds ISO9001, ISO14001, ISO45001, HSE, and API 5CT certifications.
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
You may also like
API 5CT Tubing and Casing Coupling2-3/8 2-7/8 3-1/2 with Coupling
US$29.56
500 Pieces(MOQ)
API 5CT J55 L80 N80 P110 Tubing, Casing, Drilling, Couplings for OCTG Spares
US$10.00-50.00
1 Piece(MOQ)
API 5CT Tubing and Casing Coupling 2-7/8" EU N80 From China
US$4.50-4.70
100 Pieces(MOQ)
API 5CT Tubing and Casing Coupling2-3/8 2-7/8 3-1/2 EU Nu K55 N80q
Negotiable
50 Pieces(MOQ)
Premium API 5CT 2 7/8 Inch Steel Casing Coupling for Oil Industry
US$20.00
1 Piece(MOQ)
API 5CT Casing Coupling and Tubing Coupling Accessories OCTG
US$4.90-5.50
500 pieces(MOQ)
API 5CT Tubing and Casing Coupling and Collar 2-7/8
US$5.00
100 Pieces(MOQ)
API 5CT Tubing and Casing Coupling1.9"-20"
US$6.39
50 Pieces(MOQ)
API 5CT OCTG Stc Coupling and Threads for Casing and Tubing
US$4.90-5.50
500 pieces(MOQ)
J55 API 5CT Eue Ltc Tubing and Casing Coupling for Oilfield
US$26.00-39.00
1 Piece(MOQ)
High-Quality API 5CT Tubing Coupling Pup Joint for Oilfields
US$7.65-9.56
100 pieces(MOQ)
API 5CT Standard Casing and Tubing Couplings for Oil Drilling
US$4.90-5.50
500 pieces(MOQ)
API 5CT Coupling and Threads Stc/Ltc/Eue/Btc for Casing and Tubing
US$10.00-35.00
1 Piece(MOQ)
Seamless Steel Pipe Tubing Coupling API 5CT for Industrial Use
US$45.00-50.00
10 pieces(MOQ)



















