What is the warranty period for the products?

We provide a 3-year guarantee, during which all fittings can be replaced for free.

Can you help consolidate goods from other suppliers?

Yes, we can collect goods from your other suppliers into one container to save time and money.

Do you offer other products for houses?

Yes, we provide a one-stop solution. Send us your house plan, and we will check for additional products we can supply.

Rust-Resistant Carbon Steel Exterior Spiral Staircase for House Villa Balcony Access

Name: Rust-Resistant Carbon Steel Exterior Spiral Staircase for House Villa Balcony Access
Brand: Double Building Materials Co., Ltd.
SKU: 1969561651

Guangdong, ChinaDouble Building Materials Co., Ltd.

US$2,890.00

1-9 Sets

US$1,789.00

10-19 Sets

US$998.00

20+ Sets

Product profile

Customization

Available

After-sales Service

Yes

Warranty

Yes

Structure

Beam+Balustrade+Tread

Type

Ordinary Stairs

Material

Stainless Steel

Usage

Indoor, Outdoor, Shopping Mart

Stair Type

Spiral Stair

Assemble

Easy Assemble

Beam Material

A3 Steel / Stainless Steel

Balustrade Material

Tempered Glass / Stainless Steel

Step Material

Steel / Solid Wood/ Laminated Tempered Glass

Transport Package

Plywood Package

Specification

Customized Based On Jobsite

Trademark

Double Building

Origin

China

HS Code

7308900000

Production Capacity

800

Key features

Full Customization Options: Customizable beam, tread, and railing materials including steel, stainless steel, glass, and wood.

Easy Assembly Design: Products are designed for easy installation without welding, ensuring hassle-free setup.

3-Year Warranty Coverage: Comprehensive 3-year guarantee with free replacement of all fittings within the period.

Professional Installation Support: Detailed manuals, drawings, and videos provided; overseas installation service available.

Global Project Experience: Successfully completed projects in over 40 countries with knowledge of local building codes.

One-Stop Solution Service: We can consolidate goods from other suppliers and provide comprehensive house solutions.

Certified Quality Standards: Products meet specific regional standards like AS/NZS 2208 for Australia and SGCC for America.

Durable Material Options: Available in carbon steel, S.S 304/316, tempered glass, solid wood, and marble/granite.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityLow MOQ

Double Building Materials 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: Shenzhen PortAverage Response Time: ≤7.04h

AI-Powered supplier vetting

SummaryThe supplier is a limited company with affiliated companies, 18 employees, six production lines, and a broad product range spanning staircases, railings, doors, cabinets, bathroom products, windows, and building materials. It reports substantial stated production capacity, exports 71%–90% of sales, serves multiple international markets, and has seven years of export experience. R&D evidence is positive: new products were developed within the past year and ODM services are available, alongside extensive customization options. Production quality procedures exist, but manufacturing lacks ongoing batch quantity reconciliation. Service procedures, complaint handling, corrective actions, and supplier approval documentation are present without supporting records or complete formalization. The available audit information identifies TÜV Rheinland, but the audit result is recorded as 0 and the report validity ended in 2024; certification status cannot therefore be confirmed. No financial figures are included, and...

Supplier typeThe supplier is identified as a combined company and a limited company, with affiliated companies and a broad multi-category product offering. This supports classification as a diversified manufacturing and trading supplier rather than a narrowly specialized entity.

R&D capabilityThe supplier reports new products within the past year and provides ODM services, indicating active product-development capability. However, it has no available SDK, so the evidence supports product innovation and design manufacturing but not SDK-based development.

Production capacityThe supplier reports six production lines, equipment including saws, drilling, polishing, and veneer-press machinery, and stated annual outputs of 200,000 meters of railing plus 1,500 and 2,000 staircase sets. It also has standardized finished-product inspection instructions and a one-month off-peak lead time, but does not continuously reconcile quantities for each batch or mass production.

Customization capabilityBoth R&D and design-service records list customization from samples, designs, minor customization, flexible customization, and full customization. The consistency across the two slices provides explicit evidence of broad customization capability.