What is the warranty period for the product?

The warranty for the color steel sheet is at least 10 years, with a general guarantee of 15-20 years.

What is the sound insulation performance?

The panels provide sound insulation up to 40-50 decibels.

What are the main applications for these panels?

They are used for industrial plants, warehouses, hospitals, stadiums, cold storage, clean workshops, and temporary facilities.

Prefabricated Building Roof & Wall EPS Sandwich Panel (DG9-004)

Name: Prefabricated Building Roof & Wall EPS Sandwich Panel (DG9-004)
Brand: Qingdao Doublegrand Metal Products Co., Ltd.
SKU: 709092265

Shandong, ChinaQingdao Doublegrand Metal Products Co., Ltd.

US$5.00-30.00

200 Meters

Product profile

Customization

Available

Application

Roof

Feature

Environmental, Light Weight, Metal Panel

Model NO.

DG9-004

Color

White, Blue, Red, etc.

Width

950mm---1150mm

Length

Customized

Gurantee

15-20years

Certificate

Ce, SGS, Exova, ISO9001:2008

Fire Rating

Certification

CCC, ROHS, ISO9001

Customized

After-sales Service

5 Years

Transport Package

Bulk Shipment

Specification

950

Trademark

Origin

Qingdao, China

HS Code

7606125100

Production Capacity

20000m/Month

Key features

Customizable Length: Length is customized according to order requirements.

Multiple Color Options: Available in White, Blue, Red, Grey, or customized colors.

Wide Thickness Range: Thickness options from 50mm to 175mm for various needs.

High Durability Warranty: Color steel sheet warranty of at least 10 years.

Excellent Fireproof Rating: Fire rating A grade, meeting relevant safety standards.

Superior Sound Insulation: Sound insulation up to 40-50 decibels for quiet environments.

Light Weight Design: Light dead weight reduces building load and experience.

Versatile Core Materials: Options include EPS, Mineral wool, PU, and Glass wool.

Company profile

Qingdao Doublegrand Metal Products Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2003-07-29Nearest Port: Qingdao PortAverage Response Time: >24hTerms of Payment: LC, T/T, D/PInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQingdao Doublegrand Metal Products Co., Ltd. is identified primarily as a manufacturer/factory of steel structures and related prefabricated building products, although another record describes the company as a trading company. The supplier states that it has exported to more than 30 countries across six continents and began exporting in 2003. Its stated capabilities include design, manufacturing, delivery, installation, and after-sales service, with production equipment, two production lines, ISO 9001 certification, and dedicated quality-control and R&D personnel. It reports substantial annual production capacity and that 90% of sales are exports. The evidence supports strengths in certification, production, customization, export experience, and service scope. Financial credibility cannot be assessed because the available registered-capital information is excluded from consideration and no other financial evidence is provided.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory producing steel structures, warehouses, workshops, prefabricated buildings, and related products. However, a separate company-information record describes its company nature as a trading company, creating a classification inconsistency that prevents an entirely unqualified assessment.

CertificationsThe supplier reports holding ISO 9001 certification and also states that Asia Inspection, SGS inspection, and other third-party inspections are accepted. This is explicit evidence of a formal quality-management certification and willingness to accommodate external inspection.

After-Sales capabilityThe supplier states that it provides one-stop service covering design, manufacture, delivery, installation, and after-sales service, and describes a customer-oriented professional relationship. These statements directly support the existence of an after-sales service offering, although no detailed service standards or response metrics are provided.

R&D capabilityThe supplier reports that it can develop designs independently, provide suitable proposals, and combine sales and engineering personnel to create building models and designs. It also reports 6–10 years of R&D engineer experience and advanced CNC equipment, supporting design and engineering capability, but not necessarily product or process innovation beyond customization.

Production capacityThe supplier reports more than 3,000 tons of monthly capacity, annual capacity of 200,000 tons for steel structures, 200,000 meters of galvanized wall and roof cladding, and 30,000 tons of galvanized C&Z purlines. It also reports two production lines, CNC and machining equipment, inspection at every stage, and pre-assembly before delivery, providing explicit evidence of substantial production capability.

Customization capabilityThe supplier states that it manufactures strictly according to customer drawings and requirements, can design suitable proposals independently, and performs manufacturing and inspection according to drawings. These statements directly demonstrate both drawing-based production and supplier-supported design customization.

Client casesThe supplier states that it has exported to more than 30 countries across six continents, has more than 10 years of experience, and began exporting in 2003. This supports broad international delivery experience, but the slices do not identify specific customers, projects, or independently verifiable case details.