Straight Marble Staircase for Luxury Mansion with Premium Stone Finish and Custom Architectural Structure

Name: Straight Marble Staircase for Luxury Mansion with Premium Stone Finish and Custom Architectural Structure
Brand: Double Building Materials Co., Ltd.
SKU: 1998067711

Guangdong, ChinaDouble Building Materials Co., Ltd.

US$3,100.00

1-9 Sets

US$2,600.00

10+ Sets

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Support

Warranty

5 Years

Structure

Beam

Bench

Single Stair

Type

Ordinary Stairs

Material

Stainless Steel

Usage

Indoor

Stair Type

Straight Stair

Model No.

Double Straight Staircase 1

Installation

DIY Installation

Stringer Size

300*12mm

Wood Step

40*250*1000mm

Railing

12mm Clear Tempered Glass Railing

Handrails

Stainless Steel Handrail/Wood

Delivery Time

30-45 Working Days

Trade Mark

Double

MOQ

1 Set

Certificate

AS/NZS2208

Function

Indoor/Outdoor Staircase

Surface

Powder Coated

Payment

T/T

Packing

Plywood Packing

Shipping

by Sea

Transport Package

Plywood

Specification

32*32*32cm

Trademark

Double

Origin

China

Production Capacity

10 Sets/Month

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: ≤7.09h

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.