Can I expect high quality products?

Yes, we have experienced QC staff performing strict inspections before shipping. Third-party inspections like BV, SGS, and TUV are welcome.

What are the shipping options?

For sample orders, we suggest courier express (DHL/UPS/TNT/FEDEX) or air freight. For bulk orders, air or sea freight is suggested.

7/8" Alloy Steel Sucker Rod Coupling

Name: 7/8" Alloy Steel Sucker Rod Coupling
Brand: Dongying Lake Petroleum Technology Co., Ltd.
SKU: 1928124015

Shandong, ChinaDongying Lake Petroleum Technology Co., Ltd.

US$2.80-3.50

100 Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Provide

Warranty

One Year

Model NO.

coupling

Certification

ISO 9001:2000, API 11b

Power Source

All

Operation Pressure

Downhole Pressure

Applicable Medium

Crude Oil

Structure

Sm or T Class

Material

Alloy

Name

API 7/8" Alloy Steel Sucker Rod Coupling

Key Word

Rod Coupling

Class

Sm or T Class

Size

7/8"

MOQ

100ea

Hole Size

Full Size / Slim Hole

Condition

New

Price

Cheap

Quality

Good

Transport Package

Wooden /Iron Pallet

Specification

3/4", 7/8", etc.

Trademark

lake

Origin

Shandong Dongying

HS Code

84314310

Production Capacity

500000pieces/Year

Key features

API 11B Certified: Manufactured strictly according to API spec 11B standard for SM and DES grades.

Advanced Thermal Spraying: Ni alloy coating reduces friction coefficient to 0.01, combining high hardness with low friction.

Enhanced Durability: Increased wear and corrosion resistance significantly extends the service life of rods and pipes.

ISO 9001:2008 Quality: Production and processing strictly follow ISO 9001:2008 and API standards with third-party inspection support.

Custom Surface Treatment: Surface treatment options include black coating, phosphating, or customized as per customer requirements.

Professional OEM/ODM: Full customization, minor customization, and flexible customization services available for samples and designs.

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: ≤2.80h

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.

Product Q&A

Q:How to place an order?

Send an inquiry with detailed item description or model number. We will provide a quotation and order form. If no specific packing demand is stated, standard export packing is used.

Q:What is the warranty period?

We provide a one-year warranty for this product.

Q:What certifications does the product have?

The product holds ISO 9001:2000 and API 11B certifications. Production follows ISO 9001:2008 standards.

Q:What are the payment methods?

We accept T/T (Telegraphic Transfer) or L/C at sight.

Q:What is the lead time for orders?

The average lead time is one month for both peak season and off-season.