How do you ensure product quality?

We have a complete advanced production and test line, including heat treatment and automatic processing machines, ensuring high quality and competitive pricing.

What is your after-sales service?

We provide good after-sales service and respond to inquiries within 24 hours.

Flat Constant Torque Stainless Steel Spring for Curtain

Name: Flat Constant Torque Stainless Steel Spring for Curtain
Brand: Dongguan Caiyin Hardware Spring Co., Ltd
SKU: 2082318432

Guangdong, ChinaDongguan Caiyin Hardware Spring Co., Ltd

US$0.20

1,000 pieces

Product profile

Customization

Available

Function

Pressed, Phonation, Buffer, Drive, Restoration, Measurement

Material

Steel

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Shipping Terms

by Sea/Air/Train

Thickness

Customer's Request

Selling Units

Single Item

Size

Customer's Requst

Color

Customize

Single Package Size

10X10X10cm

Place of Origin

Guangdong,China

MOQ

1000PCS

Payment Term

T/T Paypal/Western Union

Packing

Carton

Brand Name

Caiyin

Product Name

Constant Force Spring

Single Gross Weight

0.500kg

OEM

Offered

Style

Coil

Transport Package

Inner Polybag and Outer Carton

Specification

Customized

Trademark

N/A

Origin

China

Production Capacity

1000000

Key features

Customizable Color and Size: Color and Size can be customized according to customer's request.

OEM Service Available: We offer OEM services to meet specific manufacturing needs.

Fast Sample Delivery: Samples can be sent for approval within 7 days, free if tool is available.

High Production Capacity: Production capacity reaches 3,000,000 pieces per week.

24-Hour Response Time: We guarantee to respond to inquiries within 24 hours.

Competitive Pricing: Reasonable and competitive prices compared to other manufacturers.

14 Years Industry Experience: Over 14 years of specialized experience in spring manufacturing.

Global Market Presence: Serving customers in Middle East, Europe, Australia, and more.

Company profile

Fast DeliveryQuality AssuranceQA/QC InspectorsR&D Capabilities

Dongguan Caiyin Hardware Spring Co., Ltd

Guangdong, 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: 0 year CertifiedNearest Port: Shenzhen portAverage Response Time: ≤6.41h

AI-Powered supplier vetting

SummaryThe supplier is a professional spring and mould-accessory manufacturer with 14 years of development and stated production and testing equipment. It offers extensive customization and 3D software design services. However, its quality and service systems have documentation gaps: finished-product inspections and corrective-action procedures lack written records, and material traceability is absent. No supplier-management certification or environmental impact assessment report is stated. The supplier has no in-stock capability, overseas warehouse, overseas branch or agent, or overseas showroom. Financial information is represented only by years, without usable performance details. International market coverage is claimed, but no customer cases are specifically identified.

Supplier typeThe supplier identifies itself as a manufacturer of die, compression, extension, torsion, disc, gas, and leaf springs, as well as mould accessories. Its stated 14-year development history and factory production/test lines support classification as a specialized manufacturing supplier.

CertificationsSupplier-management-system certification is explicitly listed as NIL. The supplier states that it has quality assurance, but it lacks an environmental impact assessment report and does not provide evidence of formal certification.

After-Sales capabilityThe supplier has procedures for corrective and preventive actions and customer complaints, but no written records. It also lacks inventory, overseas warehouses, overseas branches or agents, and overseas showrooms, limiting documented and local after-sales support.

R&D capabilityThe supplier is identified as a professional technical supplier and provides 3D software design services with flexible customization. However, it has no available SDK, so the evidence supports design capability but not broader software-integration innovation.

Production capacityThe factory reports a complete production and testing line, including heat treatment, automatic spring coilers, CNC end-face grinders, shot blasting, wire cutting, welding, polishing, and other equipment. It also reports two quality inspectors, but has no inventory capability and no valid manufacturing-capacity contract with related subcontractors; the stated weekly capacity is incomplete, preventing assessment of output volume.

Customization capabilityThe supplier explicitly offers customization from samples, designs, minor customization, full customization, and flexible customization, supported by 3D software design services. The same customization scope is reported for both R&D/design and production-related capability.