Powered by Made-in-China.com
API 5CT Tubing and Casing Coupling9-5/8 13-3/8 Bc LC K55 L80-1 Coupling
US$20.36
500 Pieces
Sample price:US$20.63/piece.Request sample
Product profile
After-sales Service
He Qinglei:+8613140072113Warranty
1yearName
API 5CT Tubing and Casing Coupling9-5/8 13-3/8 BcGrade
K55 L80-1 N80q P110Thread
EU NuUsage
Oil PipeTransport Package
Wodden PalletSpecification
9-5/8 13-3/8Trademark
EASTLONGOrigin
Puyang ChinaHS Code
7307990000Production Capacity
5000 PCS One DayCompany 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.
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 Couplings for Threaded Tubing and Casing Pipes in Oilfield 20 18-5/8
US$265.30
50 Pieces(MOQ)
Hot-Selling API 5CT OCTG Casing Coupling for Tubing and Casing Tubes Connection Assembly
US$10.00-50.00
1 Piece(MOQ)
API 5CT Gas Oil Field Supply Casing and Tubing Coupling P110 110 2-3/8 Coupling for OCTG Rig Accessories
US$10.00-50.00
1 Piece(MOQ)
API 5CT Tubing Casing Coupling Eue Thread Casing Coupling Short Thread/ Non-Eue Tubing Couplings
US$4.90-5.50
500 pieces(MOQ)
API 5CT Casing & Tubing Coupling - OCTG
US$10.00-25.00
1 Piece(MOQ)
API 5CT 9-5/8 N80 Btc Casing Coupling
US$38.80
10 Pieces(MOQ)
API 5CT Oilfield Casing & Tubing Coupling, J55 K55 N80 L80 P110, Stc Ltc Btc Eue Nue
US$4.50-4.70
100 Pieces(MOQ)
API 5CT Oil Tubing/Casing Eue/Nue Threading Couplings for Sale
US$2.36
50 Pieces(MOQ)
API 5CT Female Coupling P110 4 1/2" Tubing Coupling
US$25.00
100 Pieces(MOQ)
Made in China API 5CT 4 1/2 Bc / LC / Sc 4 1/2 Ltc Casing Coupling and Tubing Coupling Long Thread
US$4.90-5.50
500 pieces(MOQ)
3-1/2" N80 API Pipe Coupling for Tubing and Casing
US$19.00-40.00
1 Piece(MOQ)
Factory Price API 20" N80 Stc Casing Coupling API Standard Casing Coupling
US$99.50
50 Pieces(MOQ)
3 1/2" N80q Eue API 5CT Tubing and Casing Coupling for Oilfield
US$6.00-15.00
1 Piece(MOQ)



















