What are the lead times for production?

Both peak and off-peak season lead times are within 15 workdays.

What payment terms are accepted?

We accept LC, T/T, PayPal, and Western Union.

Which ports are used for shipping?

We ship from Tianjin Port, Qingdao Port, and Shanghai Port.

Tubing Coupling and Casing Coupling Steel Grades Used Oil

Name: Tubing Coupling and Casing Coupling Steel Grades Used Oil
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2041286442

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

US$5.50

100 Pieces

Sample price:US$5.50/piece.Request sample

Product profile

Warranty

12 Months

Manufacturing Process

Hot Rolling

Surface Treatment

Phosphating

Model NO.

2-7/8 L80 EUE J55, K55, N80, L80, P110 used oil

Operation Pressure

Atmospheric Pressure

Material

Stainless Steel

Connection

Male

Color

Red

Transport Package

Pallet

Specification

2-7/8 L80 EUE

Trademark

East long

Origin

Tianjin

HS Code

7307990000

Production Capacity

50000

Key features

ISO 9001 Certified Quality: Manufactured under ISO 9001 Quality Control Certificate standards.

API 5CT Compliant Grades: Available in K55, J55, L80, and N80 steel grades.

Custom Connection Type: Male connection type is available as a customization option.

Custom Color Option: Red color is available as a customization option.

12 Months Warranty: Comprehensive warranty coverage for 12 months from purchase.

Hot Rolling Process: Manufactured using the hot rolling process for durability.

Phosphating Surface Treatment: Surface treated with phosphating for enhanced corrosion resistance.

Global Market Presence: Products exported to USA, Brazil, Venezuela, India, Kazakhstan, and Indonesia.

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.