What is the MOQ for trial orders?

No MOQ required for testing and trial order.

T38 -T38/R32 Connecting Extension Drill Rod Thread Coupling Sleeve

Name: T38 -T38/R32 Connecting Extension Drill Rod Thread Coupling Sleeve
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2111947262

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

US$7.50

1-99 Pieces

US$7.10

100-999 Pieces

US$6.50

1,000+ Pieces

Product profile

Warranty

One Year

Trademark

DFL

Origin

China

Model NO.

T38 -T38

Production Capacity

5000piece/Year

Key features

Customizable Color Options: Available in Green, Gold, Black, or based on customer requirements.

OEM, ODM, OBM Support: Full customization support for branding and manufacturing.

No MOQ for Trial Orders: No minimum order quantity required for testing and trial orders.

Comprehensive Warranty: One-year warranty coverage for mechanical defects.

Multiple Coupling Types: Offers Semi-Bridge and Full-Bridge coupling sleeves for various applications.

Wide Size Range: Diameter from 35mm to 77mm, Length from 150mm to 235mm.

High Strength Material: Manufactured from high-strength alloy steel bars.

Advanced Production Lines: Features China's largest automatic coupling production line and heat treatment lines.

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.

Product Q&A

Q:Who are we?

Established in 1999 and based in China, we cover 51,300m2, including a 16,000m2 workshop. We export petroleum machinery to over 30 countries and serve domestic markets, with a full industrial chain for production.

Q:How do we guarantee quality?

Advanced Equipment: heat treatment lines, and China's largest automatic coupling production line. Expert Team: 16 senior + 37 junior engineers handling R&D, manufacturing, and testing. Strict Inspections: Multiple checks from raw materials to final shipment.

Q:What do we offer?

Petroleum pipe accessories (couplings, pup joints, upsetters, etc.).CNC mechatronics equipment.Patented products (sand control screens, separators, centralizers, smart water injection devices, etc.).

Q:What services do we provide?

Delivery: FOB, CIF, EXW, DDP, etc. Payment: T/T, L/C, PayPal, Western Union, etc. (USD, EUR, CNY, etc.). Language: English & Chinese support (+translation available). After-sales: Technical support & maintenance.

Q:What is the warranty period?

One year.