What is the endurance limit?

The endurance limit is 100,000 times.

Heavy Duty Zinc Plating Extension Spring with Double Hook

Name: Heavy Duty Zinc Plating Extension Spring with Double Hook
Brand: Dongguan Weihui Hardware Spring Products Co., Ltd.
SKU: 2083584475

Guangdong, ChinaDongguan Weihui Hardware Spring Products Co., Ltd.

US$0.90

1,000-1,999 Pieces

US$0.80

2,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Function

Pressed, Restoration

Material

Stainless Steel

Model NO.

N/A

Usage

Industrial

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Surface Treatment

Zinc Plating , Chrome Plating , Nickel Plating etc

Transport Package

Inner Plastic Bag and Outer Carton

Specification

CUSTIOMIZED

Trademark

N/A

Origin

China

HS Code

7320909000

Production Capacity

30000PCS/Month

Key features

Custom Surface Treatment: Offers Zinc Plating, Chrome Plating, and Nickel Plating options.

Free Sample Availability: Free samples provided for approval if available tools exist.

Fast Delivery: Standard lead time is 6-10 days for quick order fulfillment.

OEM/ODM Service: Manufactures nonstandard parts according to customer drawings.

High Endurance: Tested for 100,000 times endurance limit for durability.

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

Company profile

Years of Export ExperienceHigh Repeat Buyers Choice

Dongguan Weihui Hardware Spring Products 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: 10 years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤5.85h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a professional technical supplier with manufacturing, export, service, quality-control, and R&D capabilities. It supports extensive customization, ODM, OEM for well-known brands, and reported new product development in the past year. Production exceeds 10 lines, with 6–10 quality-control staff, but only one year of total R&D engineer experience is stated. Service-support infrastructure is limited: no overseas warehouse, showroom, agents, branches, or offline trade-show participation, and no overseas service countries are reported. The supplier has quality assurance, but lacks written service procedures and an approved-supplier list. Financial records are identified by year, but no performance values are provided. No certification information or specific customer cases is supplied.

Supplier typeThe supplier is explicitly described as a professional technical supplier and a growing manufacturer, while its company type is listed as Combined. It reports more than 10 production lines and offers manufacturing, export trade, service, quality-control, and R&D functions.

R&D capabilityThe supplier is identified as a professional technical supplier, reported new products during the past year, and offers ODM services. However, it has no available SDK, and the stated total experience of R&D engineers is only one year, so the evidence supports product-development activity but not a conclusively strong innovation position.

Production capacityThe supplier operates more than 10 production lines, has 6–10 quality-control staff, and reports peak- and off-season lead times ranging from within 15 workdays to one month. Finished products are checked by packing staff, indicating an inspection step, although the stated inspection method appears limited.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides ODM and OEM services, including OEM service for well-known brands, directly demonstrating broad customization capability.