What shipping terms are available?

We accept FOB, CFR, CIF, EXW, and DDP terms.

What is your monthly production capacity?

Our factory has a capacity of 50,000 pieces per month.

Do you provide technical support?

Yes, we have over 15 years of manufacturing experience and provide full support.

Drill Pipe Coupling Oil and Gas Drilling Customized Drill Pipe Coupling

Name: Drill Pipe Coupling Oil and Gas Drilling Customized Drill Pipe Coupling
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2249914165

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

US$7.00

10-99 Pieces

US$6.90

100+ Pieces

Sample price:US$6.00/piece.Request sample

Product profile

Transport Package

Wooden Box

Specification

2-7/8"

Trademark

EASTLONG

Model NO.

2-7/8"

Origin

Tianjin, Henan

HS Code

7307290000

Production Capacity

60000/Year

Key features

High-Strength Alloy Material: Made of 42CrMo or AISI 4145H alloy steel, quenched and tempered to HRC28-32.

API Standard Thread Design: Features trapezoidal threads like NC50 for strong self-locking and anti-loosening.

Ultra-Deep Well Capability: Maintains tightness and stability in wells exceeding 8000 meters depth.

Extreme Temperature Resistance: Remains ductile and functional in polar environments down to -50 degrees Celsius.

Customized Manufacturing: Offers customized drill pipe couplings tailored to specific oil and gas requirements.

High Monthly Production Capacity: Capable of producing up to 50,000 pieces per month to meet large demands.

Comprehensive Quality Control: Includes pre-production samples and final inspections before every shipment.

Global Export Experience: Over 15 years of experience exporting to North America, Middle East, and other regions.

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.