How do you handle client complaints?

We will give a response for clients' complaint within 24 working hours, based on the fact, we will give a satisfied answer to customers.

What is the packaging method?

Products are protected with the plastic caps and then packed in carbon box.

What is your company's background?

Our company was founded in 1986, it covers an area of more than 8000 square meters. We are a factory which specialized in manufacturing all kinds of springs.

Zinc-Plated High Precision Stainless Steel Extension Spring

Name: Zinc-Plated High Precision Stainless Steel Extension Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 770110925

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$0.02

1 Piece

Product profile

Customization

Available

Function

Pressed

Material

Stainless Steel

Model NO.

MF137

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Wire Diameter

1mm

Free Height

46mm

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 Surface Treatment: Surface treatment can be customized as per customer request, including silver, black, yellow, red, green, and blue.

High Precision Manufacturing: Made with advanced CNC machines imported from Taiwan, ensuring dimensional accuracy and high tensile strength.

Extensive Industry Experience: Over 25 years of experience in manufacturing various types of springs for global markets.

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

OEM and ODM Services: Full customization available from samples or designs, including logo printing options.

Diverse Material Options: Available in carbon steel, high carbon steel, stainless steel, and alloy materials.

Competitive Pricing: Industry-leading prices with high quality and long service life.

Fast Delivery Time: Standard delivery time is 45 days, excluding holidays and special bulk orders.

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:What is the delivery time?

Normally our delivery time is 45 days (except the holiday and special bulk order).

Q:Can you provide free samples?

Yes, free sample is available for us (the sample and value should be according to our company rule).

Q:What is the surface color and plating option?

Normally the product surface color is silver (Trivalent Zinc Plating). Black, yellow, red, green, blue also are available (Powder Spraying or Paint Spraying).

Q:How do you control product quality?

All products have to go through six checks in the whole process: 1)material inspection; 2)product inspection; 3)routing inspection; 4)inspection before plating; 5)final inspection after plating; 6)inspection before delivery.

Q:What is your main product material?

Carbon steel and stainless steel. We purchase it from iron and steel group companies aroud Jiangsu and Zhejiang.