What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Do you offer customization?

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

What is your annual production capacity?

Our annual production exceeds 800 million pieces.

Custom Large High Quality Extension Spring

Name: Custom Large High Quality Extension Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 770555985

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$2.00

1 Piece

Product profile

Customization

Available

Function

Pressed

Material

Stainless Steel

Model NO.

MF185

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Extension

Production Process

Cold Roll

Shape

Coil

Wire Diameter

5mm

Free Height

545mm

Surface Treatment

as Your Request

Professional

More Than 25 Years of Experience

Transport Package

Carton

Specification

SGS

Trademark

Origin

Yangzhou Jiangsu

Production Capacity

200000 PCS/Month

Key features

Customizable Dimensions: Wire diameter, free height, and outer diameter are fully customizable to client specifications.

Diverse Surface Finishes: Options include white zinc, color zinc, nickel plating, chrome plating, and various powder or paint sprays.

High-Quality Materials: Constructed from stainless steel, alloy, spring steel, and carbon steel sourced from major steel groups.

Advanced Manufacturing: Equipped with over 50 sets of imported CNC coil spring machines for precision production.

Comprehensive Quality Control: Products undergo six strict checks including material, routing, plating, and final delivery inspections.

OEM/ODM Services: Full customization available including logo printing and design-based manufacturing.

Experienced Manufacturer: Established in 1986 with over 25 years of experience and 6 professional technical engineers.

Global Market Reach: Serves domestic and international markets including Europe, America, Russia, and the Middle East.

Company profile

Yangzhou Mingfeng Spring Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier manufactures and sells springs, mechanical components, vibration and noise-reduction equipment, rubber and plastic products, hydraulic components, and related products. It reports broad customization and ODM capabilities, recent new-product activity, OEM service for recognized brands, and production-related facilities covering winding, grinding, spraying, polishing, and punching. Quality control includes four inspectors and documented finished-product inspection instructions. The supplier states that it maintains written procedures for supplier assessment, corrective and preventive actions, and complaint handling. It has valid manufacturing contracts with associated subcontractors and reports inventory capability, but no overseas warehouse or showroom. Export sales represent 41%–50% of total sales, with Shanghai Port identified as the nearest port and stated lead times of within 15 working days in both peak and off-season. Evidence is insufficient to confirm certifications, detailed...

Supplier typeThe supplier is a manufacturer and seller of springs, mechanical parts, vibration and noise-reduction equipment, rubber and plastic products, hydraulic machinery components, and related equipment. Its registered business scope indicates a multi-product industrial manufacturer rather than a pure trading intermediary.

After-Sales capabilityThe supplier reports clear procedures and followed records for handling customer complaints, as well as documented corrective and preventive action procedures. This supports an established complaint-resolution process, although the slices do not provide response times, service results, warranty terms, or overseas service coverage.

R&D capabilityThe supplier states that it had new products during the past year and provides ODM services, indicating ongoing product-development activity. However, it reports no available SDK, and no details are provided on R&D staffing, patents, laboratories, or development resources.

Production capacityProduction evidence includes dedicated winding, grinding, spraying, polishing, and punching facilities, four quality inspectors, documented finished-product inspection instructions, inventory capability, and valid contracts with associated subcontractors. The supplier also reports lead times within 15 working days in both peak and off-season and describes a strict quality system, but the stated monthly production figure is unclear and cannot support a precise capacity assessment.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing direct evidence of broad product-development and customization support.

Client casesThe supplier states that it provides OEM services to recognized brands and has received positive customer recognition from the seal, automotive and motorcycle, mechanical, electrical, electronics, and appliance industries. No customer names, project descriptions, order scope, or independently verifiable case details are provided.