What is the span range for the steel structure?

The span ranges from 10 to 120 meters.

What steel grades are used?

We use Q235 and Q355b steel grades, meeting GB, ASTM, AISI, and BS standards.

Multi-Layer Heavy Duty Prefabricated Steel Structure Modular Building System

Name: Multi-Layer Heavy Duty Prefabricated Steel Structure Modular Building System
Brand: shandong qihua fire engineering co.,ltd.
SKU: 2276287465

Shandong, Chinashandong qihua fire engineering co.,ltd.

US$710.00

1-9 Tons

US$630.00

10+ Tons

Product specifications

H-Section Steel

Product profile

Customization

Available

After-sales Service

After-Sales Service

Layers

Multi-Layer

Model NO.

Tubular Steel Frame & H Beam

Usage

Dust-Proof Workshop, Electrostatic Workshop, Food And Chemical Industry, Heavy Industry, High-Voltage Power Plant, Research Facility, Specialized Workshop, Textile And Electronic Processing, Warehouse

Connection Form

Welded Connection

Install

Support Installation

Insulation

Polyurethane, Rockwool, Glasswool, EPS

Carbon Structural Steel

Q235/Q355b

Type

Large-Scale Industrial Park Projects

Span

10 to 120m

Type of Steel for Building Structure

High-Strength Steel

Standard

GB, ASTM, AISI, BS

Forming

Hot-Rolled Steel

Gutter

Color Steel Sheet, Stainless Steel

Transport Package

Container

Specification

40HQ

Trademark

QIHUA

Origin

China

HS Code

9406900090

Production Capacity

30000 Tons Per Year

Key features

Multi-Layer Heavy Duty Design: Suitable for dust-proof workshops, chemical industries, and high-voltage power plants.

Flexible Customization Options: Offers full customization, minor customization, and customization from samples or designs.

High-Strength Steel Materials: Utilizes Q235/Q355b steel with yield strength up to 345 MPa and ultimate tensile strength up to 630 MPa.

Wide Span Capability: Supports spans ranging from 10 to 120 meters for large-scale industrial park projects.

Efficient Welded Connection: Features welded connections with bolt strength grade 8.8 for maximum structural integrity.

Superior Insulation Options: Available with Polyurethane, Rockwool, Glasswool, or EPS insulation materials.

Fast Lead Time: Peak and off-season lead times are both within 15 workdays.

Full Installation Support: Includes support installation services with experienced teams and full acceptance service.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFlexible CustomizationQuality Assurance

shandong qihua fire engineering co.,ltd.

Shandong, 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: 8 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.77h

AI-Powered supplier vetting

SummaryThe supplier manufactures and sells insulation, soundproofing, coating, building, plastic, and related non-metallic mineral products. It reports documented procedures and records for corrective actions and customer complaints, as well as quality assurance in quality control. Production indicators include eight production lines, stated steel-structure and fireproof-coating output, in-stock capability, and off-peak lead time within 15 workdays. The supplier supports sample, design, full, minor, and flexible customization and provides ODM and OEM services, but reports no new products in the past year and no professional technical R&D, 3D design, or SDK capability. Overseas service infrastructure is limited: no overseas agents, branches, warehouse, or showroom are reported, although it has participated in ESBuild 2025 and exports account for 21%–30% of sales. Financial credibility cannot be positively assessed because the provided records show zero values for the stated financial metrics, while certification...

Supplier typeThe supplier is a manufacturer and seller of insulation and soundproofing materials, coatings excluding hazardous chemicals, building materials, non-metallic mineral products, and plastic products. It also provides ODM and OEM services, while explicitly stating that it is not a professional technical supplier.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints, and it reports in-stock capability and an off-peak lead time within 15 workdays. However, it has no overseas agents or branches, overseas warehouse, or overseas showroom, limiting the documented overseas service infrastructure.

Financial creditThe provided financial records for 2024 show zero operating revenue, operating cost, gross profit, and operating profit, and the record for the prior two years shows zero operating revenue. These stated values do not provide positive evidence of financial strength.

Production capacityThe supplier operates eight production lines and identifies water-based and thick-film steel-structure fire-retardant coating lines, an oven, and a pH meter. It reports steel-structure output of 50,000 tons and fireproof-coating output of 60,000 tons, in-stock capability, finished-product inspection instructions that are uniformly followed, and an off-peak lead time within 15 workdays.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM and OEM services, supporting a broad stated customization range.