What are the main markets for these products?

Products are exported to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, and Western Europe.

What are the specifications for the Tubing Coupling?

Tubing couplings are available in OD sizes ranging from 1.9mm to 4.5 inches with corresponding min lengths and weights.

What features does the Internal Epoxy Coating offer?

The coating provides smooth appearance, high thermal stability, strong adhesion, and excellent salt fog resistance.

API 5CT Tubing and Casing Coupling 2-7/8 EU J55

Name: API 5CT Tubing and Casing Coupling 2-7/8 EU J55
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2151698642

Tianjin, ChinaTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.

US$2.34

500 Pieces

Sample price:US$4.28/piece.Request sample

Product profile

Warranty

1 Year

Name

API 5CT Tubing and Casing Coupling 2-7/8 EU J55

Thread

EU Nu

Grade

K55 J55 N80q L80-1 P110

Usage

Oil Pipe

Transport Package

Wooden Pallet

Specification

2-7/8 2-3/8 3-1/2

Trademark

EASTLONG

Origin

Puyang China

Production Capacity

5000 PCS One Day

Key features

API 5CT Certified Quality: Authorized API 5CT certificate and ISO9001/14001/45001 certifications ensure top-tier quality.

Multi-Grade Customization: Available in K55, J55, N80, L80, and P110 grades to meet diverse engineering requirements.

Internal Epoxy Coating: Superior corrosion resistance with smooth appearance, high adhesive force, and salt fog resistance.

Comprehensive Product Range: Offers Tubing and Casing Couplings in various OD sizes from 1.9mm to 5.5 inches.

Established Manufacturer: National high-tech enterprise with 20+ years experience, 46 engineers, and 50+ IP rights.

Global Export Capability: Products exported to 31 countries including USA, Russia, and UAE with flexible Incoterms.

Fast Lead Time: Consistent production efficiency with a standard lead time of within 15 workdays year-round.

Integrated Service Chain: Full-cycle service from design, R&D, manufacturing to testing and technical support.

Company profile

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Tianjin, China

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.