What are the payment terms and lead time?

Payment terms are LC or T/T, with an average lead time of one month regardless of the season.

Is OEM or ODM service available?

Yes, we support OEM, ODM, and various customization options from samples or designs.

What is the minimum order quantity?

The minimum order quantity is negotiable.

7-1 Drilling String Drill Collar

Name: 7-1 Drilling String Drill Collar
Brand: Dongying Lake Petroleum Technology Co., Ltd.
SKU: 2160503535

Shandong, ChinaDongying Lake Petroleum Technology Co., Ltd.

US$5,000.00

1 Piece

Product profile

Customization

Available

After-sales Service

Online Service

Warranty

12 Month

Model NO.

drilling string tools

Manufacturing Process

CNC Milling

Surface Treatment

Without Processing

Operation Pressure

Atmospheric Pressure

Material

Stainless Steel

Size

3-1/2" to 6-5/8"

Type

P550/530/Alloy Steel

Connection

Nc/Reg

ID

2-1/14 to 5in

Transport Package

Wooden Case

Specification

API 7-1

Trademark

Lake

Origin

China

HS Code

84314310

Production Capacity

500PC/Month

Key features

Non-Magnetic Material: Made from low-strength non-magnetic steel bars with low magnetic permeability.

Directional Drilling Support: Houses MWD tools without interfering with specialized directional equipment.

Customizable Specifications: Size, type, connection, and ID can be customized per customer order.

Three Design Types: Available in Silick, Spiral, and Flex Non-Mag Drill Collar types.

Strict Quality Inspection: Fully inspected with recorded data and inspection certificates provided.

OEM/ODM Service: Supports full customization, minor customization, and customization from samples.

12-Month Warranty: Comprehensive 12-month warranty coverage with online after-sales service.

CNC Manufacturing: Manufactured using CNC milling process for precise engineering standards.

Company profile

Exhibition ExperienceMulti-language PioneerYears of Export ExperienceCooperated with Fortune 500

Dongying Lake Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.04h

AI-Powered supplier vetting

SummaryThe supplier demonstrates customization, ODM, and OEM capabilities, with a new product reported in the past year and AutoCAD-based R&D. Quality processes include raw-material traceability, documented inspection instructions, and random finished-product inspection, but only one quality inspector is reported. Service procedures and complaint-handling procedures are documented and followed, although corrective/preventive actions lack written records. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, or branches, and overseas service coverage is listed as zero. Financial, certification, production scale, and customer-case evidence is insufficient for a definitive assessment. Sustainability and digital-management capabilities appear limited, with no ERP, CRM, SAP, or AI-based management implementation reported.

Supplier typeThe supplier is identified through its capabilities as a professional technical supplier, provides ODM services, and supplies OEM services for well-known brands. This supports classification as a technical manufacturing/OEM-ODM supplier, although the slices do not state a formal legal or industry supplier category.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, and service assessment procedures with written procedures and records. However, it reports no overseas warehouse, showroom, agents, or branches, which limits documented overseas service infrastructure.

R&D capabilityThe supplier reports new products in the past year, ODM capability, AutoCAD use, and professional technical-supplier status. Conversely, it reports zero patents, no private mold design capability, no 3D software design service, no SDK, and no AI, ERP, CRM, or SAP-based digital-management capability, indicating some product-development capacity but limited documented innovation infrastructure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also reports ODM service availability. This is direct evidence of broad customization capability.