What is the lead time for mass production?

Mass production takes less than 14 days for quantities under 5,000 pieces.

Where is your factory located?

We are a factory in Zhongshan, China, just 2 hours' drive from Hong Kong or Guangzhou.

Do you have certifications?

Yes, we have ISO9001:2008 certification and BV or SGS reports for RoHS and REACH standards.

Customized Stainless Steel Extension Spring From China Manufacturer

Name: Customized Stainless Steel Extension Spring From China Manufacturer
Brand: Zhongshan Rich Gift Limited
SKU: 808904235

Guangdong, ChinaZhongshan Rich Gift Limited

US$2.00

100-999 Pieces

US$1.50

1,000-9,999 Pieces

US$1.00

10,000+ Pieces

Product profile

Customization

Available

Function

Phonation, Buffer, Drive, Restoration

Material

Stainless Steel

Usage

Industrial, Auto, Motorcycle

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Wire

0.5mm/Tension Spring/Extension Spring

Length

50mm/Torsion Spring/Long/Heavy Duty

Coils

30/Snap Spring/Garage Door Torsion Spring

Pagoda Spring

Hot Rolled Spring/Alloy Spring/Helical Coil Spring

Mechanical Suspension Spring

Damping Spring/Battery Charger/Special Shape Sprin

Cylindrical Spring

Piano Wire Spring/Craft Spring/Door/Vortex Coil Sp

Force Spring

Torque Force Spring/Rectangular/Die Spring

Leaf

High Temperature/Wave/Coil/Metal/Compression

Auto

Industrial/Mechanical/Valve Spring/Stainless Steel

Flat

Auto Return/Customized/Precision/Spiral Spring

Transport Package

Carton

Trademark

OEM

Origin

Zhongshan

HS Code

73202090

Production Capacity

50000PCS/Day

Key features

Customizable Wire Diameter: Available from 0.04mm to 60.0mm or fully customized to specific requirements.

Wide Material Selection: Includes SWC, SUS, SWP, phosphor copper, 60Si2Mn, 50CrVA, and alloy wires.

No MOQ for Most Products: No minimum order quantity required; free samples available upon delivery payment.

Fast Sample Production: Samples ready in 3 to 10 days depending on design complexity and urgency.

Mass Production Speed: Less than 14 days for mass production of quantities under 5,000 pieces.

Global 500 Cooperation: Design team established since 2011, cooperating with BMW, Audi, and Volkswagen.

Rapid Response Support: 30-person team available over 14 hours daily with email response within 1 hour.

Competitive Shipping Rates: Lowest FOB charges in southern China and competitive DHL door-to-door pricing.

Company profile

High Repeat Buyers ChoiceExperienced TeamFull Customization100% Finished Products Inspection

Zhongshan Rich Gift Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: Confidential CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤8.16h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and R&D/ODM capabilities, including recent new-product activity, and reports OEM service for well-known brands. It has manufacturing equipment, a 1,200 m² facility, in-stock capability, traceable raw-material identification, quality assurance, and stated lead times within 15 workdays in both peak and off-season. However, several operational controls are documented only as procedures without records, and there is no valid manufacturing-capacity contract with related subcontractors. Overseas support is limited: no overseas warehouse, showroom, agents, branches, or prior offline trade-show participation are reported. Financial credibility cannot be assessed because the supplied financial fields contain only years rather than financial results. No certifications or specific customer cases are identified.

Supplier typeThe supplier’s stated business scope includes hardware manufacturing, development, wholesale and retail, along with sales of plastic, leather, electronic and lighting products. Its commercial coverage spans multiple categories, while the 1,200 m² manufacturing plant indicates a manufacturing-oriented supplier rather than only a trading entity.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and supports customization from samples and designs through full and flexible customization. However, it reports no available SDK, which may limit certain development or integration scenarios, although the broader evidence supports an innovation capability.

Production capacityProduction resources include yarn-splitting, braiding, laser-cutting, printing, and thermal-transfer equipment, supported by a 1,200 m² plant, inventory capability, 30 qualified service-capability suppliers, and stated lead times within 15 workdays. A material control weakness is that no valid manufacturing-capacity contract exists with related subcontractors, and finished-product inspection instructions lack written records.

Customization capabilityBoth records explicitly list customization from samples, customization from designs, full customization, minor customization, and flexible customization. The supplier also reports R&D capability, recent new products, and ODM availability, providing direct evidence of broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of brand-client experience. However, no brand names, project descriptions, order history, or independently verifiable case details are supplied, so the depth of its customer-case record cannot be assessed.