What is the manufacturing process?

The manufacturing process is casting.

What certifications does the company hold?

We hold ISO9001, API 5CT, and BV Quality supplier evaluation certificates.

What is the standard length range?

Standard lengths are customized, typically ranging from R3 (11.0-11.9m).

API 5CT OCTG9-5/8 Casing Tubing N80 L80 Petroleum Pipe with Btc Coupling

Name: API 5CT OCTG9-5/8 Casing Tubing N80 L80 Petroleum Pipe with Btc Coupling
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2043866202

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

US$156.79

50 Tons

Sample price:US$296.00/piece.Request sample

Product profile

Warranty

1years

Manufacturing Process

Casting

Name

API 5CT OCTG9-5/8 Casing Tubing N80 L80 Petroleum

Model NO.

9-5/8

Grade

K55 J55 L80 N80 P110

Thread

Bc LC Sc

Lengtg

R3(11.0-11.9m)

Usage

Oil Pipe

Specification

9-5/8

Trademark

EASTLONG

Origin

Puyang China

HS Code

7304291000

Production Capacity

500 Tons One Day

Key features

API 5CT Certified: Authorized by American Petroleum Institute ensuring high quality standards.

Wide Grade Selection: Available in J55, K55, N80, L80, and P110 steel grades for various needs.

Customizable Dimensions: OD ranges from 2 3/8 to 20 inches with customized length options.

Multiple Thread Types: Supports NUE, EUE, LTC, STC, and BTC thread connections.

ISO 9001 Quality: Holds ISO9001 Quality system certificates for reliable manufacturing.

Fast Lead Time: Average lead time within 15 workdays for both peak and off seasons.

Established Manufacturer: Founded in 1999 with 35 senior engineers and advanced intelligent workshops.

Flexible Payment Terms: Accepts LC, T/T, PayPal, and Western Union for convenient transactions.

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.