Can the product be customized?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization options.

What is the minimum order quantity?

The MOQ is 100ea, but it can be negotiable depending on the specific requirements.

What certifications do the products have?

Our products are certified with ISO 9001:2000 and API 11B standards.

11b Sucker Rod Coupling Polished Rod Coupling

Name: 11b Sucker Rod Coupling Polished Rod Coupling
Brand: Dongying Lake Petroleum Technology Co., Ltd.
SKU: 1928282035

Shandong, ChinaDongying Lake Petroleum Technology Co., Ltd.

US$3.00-10.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Provide

Warranty

One Year

Model NO.

class T or SM

Certification

ISO 9001:2000, API 11b

Power Source

Operation Pressure

Applicable Medium

Mud

Structure

Class T / Sm

Material

Steel

Product Name

API 11b Sucker Rod Coupling Polished Rod Coupling

Class

T Ot Sm

MOQ

100ea

Transport Package

Wooden /Iron Carton

Specification

Class T / SM

Trademark

lake

Origin

Shandong Dongying

HS Code

84314310

Production Capacity

500000pieces/Year

Key features

API 11B Certified Quality: Manufactured strictly according to API spec 11B with ISO 9001:2008 certification.

High Durability Coating: Advanced thermal spraying reduces friction to 0.01, improving service life significantly.

Hydrogen Embrittlement Resistant: Made from 5140 alloy steel, highly resistant to hydrogen embrittlement for safety.

Fatigue Resistant Threads: Cold worked pre-stressed, roll-formed threads ensure stronger and fatigue-resistant connections.

Customizable Surface Treatment: Surface treatment includes black coating, phosphating, or as per customers requirement.

Third-Party Inspection Supported: Welcome third-party inspections such as BV, SGS, and TUV to ensure quality.

Flexible Customization Options: Offers full customization, minor customization, and flexible customization from samples or designs.

Professional After-Sales Support: Provide one-year warranty and professional after-sales service for all products.

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: ≤1.72h

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.