How long is the lead time?

The lead time is within 15 workdays for both peak and off-peak seasons.

What is the annual production capacity?

The factory can produce 3.6 million collars and 1.7 million sets of oil down hole tools annually.

Which ports are used for export?

Exports are handled via Tianjin Port, Qingdao Port, and Shanghai Port.

4-1/2 Casing Coupling Btc

Name: 4-1/2 Casing Coupling Btc
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2249807245

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

US$4.50

1-9,999 Pieces

US$4.20

10,000+ Pieces

Product specifications

Coupling

Sample price:US$20.00/piece.Request sample

Product profile

After-sales Service

12 Month

Warranty

12 Months

Manufacturing Process

CNC Milling

Surface Treatment

Without Processing

Operation Pressure

1 PCS

Material

Stainless Steel

Surface

Phosphorization

Surface Protection

Paint

Thread

Btc

Transport Package

Tray Packaging

Specification

8-5/8

Trademark

east long

Origin

Tian Jin

HS Code

7307990000

Production Capacity

10000

Key features

CNC Milling Process: Manufactured using precision CNC milling for high accuracy.

Stainless Steel Material: Constructed from durable stainless steel for longevity.

Custom Surface Options: Available with phosphorization, paint, or BTC thread customization.

12 Month Warranty: Comprehensive 12-month warranty coverage included.

Large Scale Production: Annual output of 3.6 million collars and 1.7 million sets of tools.

Automated Production Line: Features one of the largest automated coupling production lines.

Multiple Payment Terms: Accepts LC, T/T, PayPal, and Western Union for flexibility.

Fast Lead Time: Peak and off-peak season lead times within 15 workdays.

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: ≤24hTerms 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.