What are the payment terms?

We accept D/P, T/T, LC, Western Union, PayPal, and small-amount payments.

How long is the lead time for production?

The average lead time is within 15 workdays, regardless of whether it is peak or off-peak season.

What quality inspections are performed before shipment?

We perform 100% inspection including raw material checks, dimensional accuracy, CNC machining quality, surface finish, and final product visual inspection.

Heavy-Duty Industrial Door Spring Plug Fitting for Durability

Name: Heavy-Duty Industrial Door Spring Plug Fitting for Durability
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2305980665

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$4.40

500 Pairs

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Die Casting Machine Type

Cold Chamber Die Casting Machine

Die Casting Method

Precision Die Casting

Model NO.

QYS12012

Application

Hardware

Machining

CNC Machining

Material

Aluminum

Surface Preparation

Polishing

Pressure Chamber Structure

Horizontal

Tolerance Grade

Casting Surface Quality Level

Certification

CE, ISO 9001:2000, ISO 9001:2008

Transport Package

Carton Box Pallet

Specification

1 3/4" 2" 2 5/8" 3 3/4" 5 1/4" 6"

Trademark

Origin

Hefei Anhui China

HS Code

761699000

Production Capacity

5000pairs/Week

Key features

Premium Aluminum Material: Manufactured with high-strength aluminum alloy for excellent durability and corrosion resistance.

Precision CNC Machining: Advanced CNC winding machines ensure accurate dimensions and reliable torque transmission.

Customizable Surface Finish: Surface finish options include shot blasting or customized finishes to meet specific needs.

OEM & ODM Services: Full customization available for sizes, designs, and packaging based on customer requirements.

Wide Size Compatibility: Available in multiple sizes including 1 3/4', 2', 2 5/8', 3 3/4', 5 1/4', 6' and various drum sizes.

Global Export Experience: Over 11 years of export experience serving residential, commercial, and industrial markets worldwide.

Strict Quality Control: 100% inspection including raw material, dimensional accuracy, and final product visual checks.

Fast Delivery Time: Lead time within 15 workdays for both peak and off-peak seasons.

Company profile

Patents AwardedFast DeliveryQuality AssuranceR&D Capabilities

Hefei Wang Qin Spring Co., Ltd.

Anhui, 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: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.39h

AI-Powered supplier vetting

SummaryHefei Wang Qin Spring Co., Ltd. is a China-based manufacturer/factory in Anhui specializing in automatic door balance system and garage door springs. It reports ISO 9001 certification, nine production lines, in-stock capability, and lead times within 15 working days in both peak and off-seasons. The supplier offers broad customization, ODM, and OEM services for popular brands, but reports no new products in the past year and has fewer than five R&D engineers. Service processes exist for corrective actions and complaints, but written records and formal assessment procedures are absent. It has no overseas warehouse, showroom, agent, branch, or stated overseas-service countries, and lacks a valid manufacturing-capacity contract with related subcontractors. Financial evidence is insufficient for a credibility assessment, while customer-case evidence is limited to OEM service for popular brands and participation in R+T Asia.

Supplier typeThe supplier is identified as a manufacturer/factory and other business entity, organized as a limited company in China, with an operating location and factory address in Anhui. This directly supports classification as a manufacturing supplier.

CertificationsThe supplier reports holding ISO 9001 certification. This is explicit evidence of a certified quality management system, although no certificate scope, issuing body, or validity details are provided.

Production capacityThe supplier describes professional production and testing equipment, strict quality control, nine production lines, inventory capability, and lead times within 15 working days in both seasons. Nevertheless, it reports no valid manufacturing-capacity contract with related subcontractors, so the overall production assessment is positive but not without a documented control gap.

Customization capabilityThe supplier explicitly offers full customization, design-based customization, sample-based customization, minor customization, flexible customization, ODM services, and OEM services for popular brands. These offerings directly support strong customization capability.