How do you handle defective products?

If the problem is caused by us, products can be returned, and we will send a replacement without extra fee.

What is the packaging method?

Products are packed with EPE bag, thick poly bag, hardboard inner box, and 5-layer master carton.

How can I trust you for the first cooperation?

You can check our quality via samples or visit our factory located in Guangzhou.

Double-Deck Spring Box 240-1.0 for Rolling Door/Roll up Gate

Name: Double-Deck Spring Box 240-1.0 for Rolling Door/Roll up Gate
Brand: Guangzhou Yosen Hardwares Manufacturing Co., Ltd.
SKU: 841080395

Guangdong, ChinaGuangzhou Yosen Hardwares Manufacturing Co., Ltd.

US$2.00

500-999 Pieces

US$1.80

1,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Other Door & Window Accessories

Material

Galvanization

Model NO.

240-1.0

Outer Diameter

240mm

Inter Thickness

77.5mm

Edge Thickness

80mm

Stock Thickness

1.0mm

Packing Weight

12.37kgs

Packing Size

60*48*24cm

Color

Silver

Style

Nylon Ball

Delivery Time

About 30days

Sample

Reasonable Quantity Are Free for Quality Checking

Transport Package

10PCS\Bag

Specification

60*48*24

Trademark

Yongjie

Origin

Guangdong, China

Key features

OEM/ODM Customization: Supports custom designs based on customer samples or 3D drawings.

High Durability Material: Galvanized steel with 1.0mm stock thickness for long-lasting performance.

Free Quality Samples: Free samples available for quality checking; buyer pays express cost.

Professional Manufacturer: Established in 1990s with 20,000m2 facility and 60+ employees.

Strict Quality Control: Every process checked and each product inspected before packing.

Reliable After-Sales: Free replacement for defective products caused by the manufacturer.

Secure Packaging: Multi-layer protection including EPE, poly bag, and 5-layer carton.

Fast Delivery: Standard delivery time is about 30 days after deposit.

Company profile

In-stock CapacityFast DeliveryFull CustomizationQuality Assurance

Guangzhou Yosen Hardwares Manufacturing Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2002-01-17Nearest Port: Nansha Guangzhou, Huangpu Guangzhou, Shekou ShenzhenAverage Response Time: ≤0.23hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with R&D, design, manufacturing, and after-sales capabilities. It provides 3D software design, ODM, and multiple customization modes, and reports new-product development in the past year. Quality and service processes include ISO9001:2015 certification, documented inspection instructions, supplier-service assessments, corrective/preventive actions, and complaint handling procedures. Export activity is established, but no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported. Financial evidence is inconsistent across the provided records and is insufficient for a reliable credibility judgment. The supplier does not report OEM work for popular brands or cooperation with Fortune 500 companies.

Supplier typeThe supplier explicitly identifies itself as a professional technical supplier. Its description states that it has integrated R&D, design, manufacturing, and after-sales service capabilities, supporting classification as a technical/manufacturing supplier.

CertificationsISO9001:2015 certification is explicitly reported in both the sustainable-development management-system and management-system certification records. This provides direct evidence of a certified quality-management framework.

After-Sales capabilityThe company description states that it provides after-sales service, while the service-capability assessment, corrective/preventive action, and customer-complaint processes are documented and followed. These records support an established after-sales and service-management capability.

R&D capabilityThe supplier reports professional R&D capability, new products during the past year, ODM services, 3D software design, and two R&D engineers. However, it has no available SDK; overall evidence still supports active product and design innovation.

Production capacityThe company describes advanced production equipment, a professional technical team, and a quality-management system. Finished-product inspection instructions are uniformly followed, and service-related procedures and records are maintained, supporting production-process capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, and ODM services, together with 3D software design. This is direct evidence of broad customization capability.