What surface treatment is applied to the joint?

The surface treatment includes phosphating and spray painting.

Apl Oil Couplingoil Pipe Joint2-7/8” L80

Name: Apl Oil Couplingoil Pipe Joint2-7/8” L80
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2098656202

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

US$6.00

10-99 Pieces

US$5.90

100+ Pieces

Sample price:US$6.00/piece.Request sample

Product profile

Products Name

Apl Oil Couplingoil Pipe Joint2-7/8”l80

Used for

Tubing Coupling

Size

2-7/8'

Model NO.

2-7/8"

Grade

L80

Thread

Long Thread

Color

Res

Surface Treatment

Phosphating

Stock

20000

MOQ

Transport Package

Wooden Crate

Specification

2-7/8”

Trademark

EASTLONG

Origin

Henan, China

HS Code

7307990000

Production Capacity

80000/Year

Key features

OEM Customization Support: Supports OEM customization to meet specific client branding and design requirements.

API 5CT Standard Compliance: Manufactured in strict accordance with API 5CT standards for oil pipe joints.

High-Quality Alloy Material: Constructed from durable L80 grade alloy steel for superior strength and reliability.

1-Year Warranty Coverage: Comprehensive 1-year warranty period provided for peace of mind and quality assurance.

Free Packaging Services: Includes free packaging options such as wooden crates, pallets, and customized solutions.

Professional Manufacturer: Established in 1999, a national high-tech enterprise with 46 engineers and 50+ IP rights.

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: ≤18hTerms 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.