What type of steel is used for the main frame?

The main frame uses low-alloy high-tensile structural steel, such as Q235B or Q355B.

Does the company have quality certifications?

Yes, we have passed ISO9001:2008, ISO14001:2004, GB/T28001:2001, and obtained ASTM and SGS certifications.

What is the connection form for the structure?

The structure uses a bolt connection form for easy assembly and removal.

High-Strength Columns and Beams Customized Prefab House Prefabricated Steel Structure

Name: High-Strength Columns and Beams Customized Prefab House Prefabricated Steel Structure
Brand: Qingdao Ruly Steel Engineering Co., Ltd
SKU: 2057180822

Shandong, ChinaQingdao Ruly Steel Engineering Co., Ltd

US$29.00-49.00

200 Square Meters

Sample price:US$1.00/square meter.Request sample

Product profile

Customization

Available

After-sales Service

Installation Guidance on Construction Site

Connection Form

Bolt Connection

Model NO.

RULYC0055

Residential Wall Structure

Top Wall Beam

Standard

AISI, BS, ASTM, JIS, DIN, GB

Steel Type

Low-Alloy High-Tensile Structural Steel

Main Frame

Steel Columns and Beams

Surface Treatment

Painting or Hot-DIP Galvanize

Frame Type

Portal Frame

Design Load

Wind, Snow, Seismic

Door

Roller Shutter Door or Sliding Door

Wall Purlin

C Purlin

Roof Purlin

Z Purlin

Window

Sliding Window, Fixed Window, Top Hung Window

Color

Customized

Wall and Roof

Aluminum Composite Panel, Glass Wool Panel

Service

Design, Manufacture, Delivery, Install

Service Life

50 Years

Application

Steel Workshop

Forming

Hot-Rolled Steel

Type of Steel for Building Structure

High-Strength Steel

Transport Package

Standard Export Package or Customer's Requirement

Specification

Customized

Trademark

Ruly Steel

Origin

China

HS Code

9406900090

Production Capacity

2000t/Month

Key features

Customized Color Options: Color is fully customized to meet specific customer requirements.

50-Year Service Life: Designed for a long-lasting service life of 50 years.

ISO9001 Quality Certified: Manufactured under strict ISO9001:2008 quality management system.

On-Site Installation Guidance: Experienced engineers provide installation guidance on the construction site.

Hot-DIP Galvanize Option: Surface treatment includes painting or hot-dip galvanizing for corrosion resistance.

Multi-Standard Compliance: Meets international standards including AISI, BS, ASTM, JIS, DIN, and GB.

High-Strength Steel Material: Constructed using low-alloy high-tensile structural steel for durability.

Bolt Connection System: Features easy assembly and dismantling with a reliable bolt connection form.

Company profile

Qingdao Ruly Steel Engineering Co., Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableAverage Response Time: ≤10.99h

AI-Powered supplier vetting

SummaryQingdao Ruly Steel Engineering Co., Ltd. is a China-based combined limited company established in 2019, with 63 employees and stated steel-structure productivity of 30,000 tons annually. It identifies as a professional technical supplier, provides 3D software design and multiple customization options, and has quality-control traceability, quality assurance, complaint-handling, and corrective-action procedures with records. Manufacturing contracts with associated subcontractors and in-stock capability are reported. However, no SDK is available, and no certification holdings or customer cases are explicitly provided. The supplier reports financial records for 2023–2025, but the slices do not provide sufficient information to assess financial credibility. Overseas support is limited: it reports no overseas warehouse, showroom, agents, branches, offline trade-show participation, or overseas-service countries.

Supplier typeThe supplier is identified as a combined limited company operating in China, with a stated business scope covering mechanical and electrical machinery repair, leasing, installation, and import/export activities. Its detailed offering includes manufacturing, service, quality control, and R&D capabilities.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints, plus in-stock service capability and stated service quotation terms. Conversely, it reports no overseas warehouse, showroom, agent, branch, or overseas-service country, limiting evidence of geographically local after-sales support.

R&D capabilityThe supplier is explicitly identified as a professional technical supplier and provides 3D software design services with R&D-based customization. The absence of an available SDK is a stated limitation, but does not negate the documented design and R&D capability.

Production capacityThe supplier reports annual steel-structure productivity of 30,000 tons, valid manufacturing contracts with its factory and each associated subcontractor, and in-stock capability. Its stated business scope also includes equipment-related manufacturing/service activities, supporting a documented production base.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with 3D software design services. These statements directly support broad customization capability.