Do you provide free samples?

Yes, free samples are available, subject to our company rules regarding sample and value.

What surface colors are available for your products?

Normally the product surface color is silver (Trivalent Zinc Plating). Black, yellow, red, green, and blue are also available via powder or paint spraying.

How do you control product quality?

All products go through six checks: material inspection, product inspection, routing inspection, inspection before plating, final inspection after plating, and inspection before delivery.

How do you handle client complaints?

We provide a response for client complaints within 24 working hours and give a satisfied answer based on the facts.

What is your main market?

Our main markets include Domestic, Europe, America, Russia, South America, and the Middle East.

Custom Stainless Steel High Precision Extension Spring

Name: Custom Stainless Steel High Precision Extension Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 768758775

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$0.03

1 Piece

Product profile

Customization

Available

Function

Pressed

Material

Stainless Steel

Model NO.

MF089

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Wire Diameter

1mm

Free Height

46mm

Surface Finsih

Zinc-Plated

Professional

More Than 25 Years

Transport Package

Cartons

Specification

SGS

Trademark

Origin

Yangzhou Jiangsu

Production Capacity

5000000

Key features

Customization Options: Full customization, minor customization, and flexible customization available from samples or designs.

High Precision Material: Made of high-quality stainless steel, carbon steel, and high-carbon steel with high tensile strength.

Extensive Experience: Over 25 years of professional experience in manufacturing various types of springs.

Advanced Equipment: Equipped with over 50 sets of advanced numerical control coil spring machines imported from Taiwan.

Strict Quality Control: Six-step inspection process including material, routing, plating, and final delivery checks.

Diverse Surface Treatment: Available in silver, black, yellow, red, green, and blue via zinc plating or powder/paint spraying.

Competitive Pricing: Industry-leading prices with high quality and long service life for industrial and automotive use.

Fast Response to Complaints: Customer complaints are responded to within 24 working hours with a satisfactory solution.

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.

Product Q&A

Q:When was your company founded and what is the plant area?

Our company was founded in 1986 and covers an area of more than 8000 square meters.

Q:Are you a trading company or a factory?

We are a factory specialized in manufacturing all kinds of springs.

Q:What are your main products?

Our main products include coil spring, suspension spring, valve spring, oil seal spring, torsion spring, extension spring, snap spring, and spiral spring.

Q:What is your annual production capacity?

Our annual production is more than 800 million pieces.

Q:What is your delivery time?

Normally our delivery time is 45 days, except for holidays and special bulk orders.