Qingdao Ruly Steel Engineering Co.,Ltd
| Wall and Roof | Sandwich panel |
| Delivery Time | 20-40 workdays |
| Service life | 50 Years |
| Payment Terms | L/C, D/P, T/T, D/A, Western Union |
| Type | PEB Steel Buildings |
| Surface treatment | Painting |
| Application | logistics warehouse, workshop, hotel |
| Raw steel material | Q235B, Q355B |
| Supply Ability | 20000 Square Meter Per Month |
| Features | Pre Building Structure |
| Working scope | Design, Fabrication, Installation |
| Packaging Details | 20GP/40HQ/40OT container |
| Model Number | RULYX004 |
| Brand Name | Ruly Steel |
| Certification | ISO, SGS, CE, AISC, ASTM, AS/NZS, GB |
| Place of Origin | China |
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Product Specification
| Wall and Roof | Sandwich panel | Delivery Time | 20-40 workdays |
| Service life | 50 Years | Payment Terms | L/C, D/P, T/T, D/A, Western Union |
| Type | PEB Steel Buildings | Surface treatment | Painting |
| Application | logistics warehouse, workshop, hotel | Raw steel material | Q235B, Q355B |
| Supply Ability | 20000 Square Meter Per Month | Features | Pre Building Structure |
| Working scope | Design, Fabrication, Installation | Packaging Details | 20GP/40HQ/40OT container |
| Model Number | RULYX004 | Brand Name | Ruly Steel |
| Certification | ISO, SGS, CE, AISC, ASTM, AS/NZS, GB | Place of Origin | China |
| High Light | anti-seismic prefab steel structure ，bolt connected steel structure hotel ，multi-story steel structure construction | ||
Multi-Story Anti-Seismic Prefab Bolt Connected Steel Structure Built Hotel
Product Features
Steel frame apartment buildings are multi-unit residential structures that use cold-formed galvanized steel profiles as their primary load-bearing system. These steel frames are created by precisely shaping the metal through advanced roll-forming machines, resulting in various structural components such as wall panels, roof trusses, floor joists, and ceiling frames.
The use of lightweight yet strong galvanized steel ensures a high level of structural integrity, resistance to corrosion, and long-term durability. Unlike traditional construction, steel frame systems allow for faster assembly, greater design flexibility, and reduced material waste. These buildings are ideal for both low-rise and mid-rise apartment developments, offering a modern, sustainable, and cost-effective alternative to concrete or wood framing.
Material list
| Steel Frame | H section steel | Q235B/Q355B steel plate thickness: 8-30mm |
| Welding | Automatic submerged arc welding | |
| Rust removal | Sand blasting | |
| Surface finish | Alkyd or Epoxy paint or Galvanized | |
| Intensive bolt | M20,Grade 10.9 | |
| Supporting System | Angle brace | L50x4,Steel Q235, processed and painted |
| Horizontal brace | Φ20, Steel Q235, processed and painted | |
| Column brance | Φ20, Steel Q235, processed and painted | |
| Tie rod | Φ89*3, Steel Q235, processed and painted | |
| Ordinary bolt | M12 Galvanized bolt | |
| Roof | Purlin | C160*60*2.5,Steel Q235, galvanized |
| Roof panel | Sandwich panel or corrugated steel sheet | |
| Sky light | 6mm thick reinforced fiber plastic | |
| Accessories | Glass cement, self-tapping screws, etc. | |
| Edge cover | 0.4mm steel sheet profile trimming | |
| Gutter | 0.4mm thick sheet steel profile or galvanized sheet | |
| Down pie | Φ110PVC | |
| Walls | Purlin | C160*60*2.5,Steel Q235, galvanized |
| Wall | Sandwich panel or corrugated steel plate | |
| Accessories | Glass cement, self-tapping screws, etc. | |
| Edge cover | 0.4mm steel sheet profile trimming | |
| Ventilation | Roof unpowered ventilator | |
| Doors & windows | Rolling door/sliding door PVC/alu/steel/window |
Our Company and Certificate
Qingdao Ruly Steel Engineering Co., Ltd is a professional steel structure fabrication and engineering company, located in Qingdao, China, which integrates steel structure design, research and development, manufacturing and installation. The project types include prefabricated steel workshop, warehouse, logistics park and other light steel structure of the civil building system, high-rise residential buildings, exhibition center, stadium, airport station and bridge, Power plant, chemical plant, oil and gas, mining,etc.
Our company's steel structure processing plant now covers an area of 35,000 square meters, plant20,000 square meters. More than 100 employees. The monthly production capacity for steel structure is more than 1500 Tons. Our steel structure components include light/heavy H steel ,BOX steel,Cross shaped section steel, large diameter submerged arc straight-weld pipe,steel model structure, C/Z purlin and machining fitting components . There are three subordinate steel structure companies, which have passed and strictly implemented ISO9001:2008 quality management system, ISO14001:2004 environmental system, GB/T28001:2001 occupational health system, and obtained ASTM certification in the United States, and international SGS product certification. Obtained the right of export, design, installation and consultation from the ministry of foreign trade and economic cooperation.
Quality first, Technology ahead ,Innovation continually is our entrepreneurial concept. We build strong relationships of trust with our clients, truly understanding their needs and bringing them the most reasonable solutions.
Packing & Transport
All the structure will be well packed with standard package suitable for ocean transport and loaded into 40'HQ.
All the products are loaded at the loading site of our factory using crane and forklift by our skilled workers, who will prevent the goods to be damaged.
Quality Control
QC/Technical Support
Raw material quality control
Thickness tolerance <0.25mm
Yield and tension strength testing in-house
Third party inspection certificate
Supply traceable mill certificate
Structural steel fabrication quality control
100% testing dimension tolerance <1mm
20% sample welding line ultrasonic testing, no fault, full penetration.
20% magnetic powder testing, no bubble, no defect, Smooth and Full
Supply third-party inspection assistance.
Shot blasting and painting quality control
Shot blasting grade Sa. 2.5 Metal luster, no rust, no oil dirt, no welding spatter, Roughness >75um
Paint primer within 5 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75UM
Paint primer within 5 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75UM
Our Service
1.Structural steel fabrication, painting , galvanizing , pre-assembly
2.Designing, fabrication and installation for Prefabricated steel structure building.
3.Deepen or design the fabrication drawing or shop drawing based on your architectural drawing and construction drawing
4.We offer reasonable advices for usage, maintenance and technically improve.
How to quote
The following question we need to know before making the price. Just feel free to fill what you know.
| 1 | Location (where will it be built?) | _____country, area |
| 2 | Size: length*width*height | _____mm*_____mm*_____mm |
| 3 | wind load (max. wind speed) | _____kn/m2, _____km/h, _____m/s |
| 4 | snow load (max. snow height) | _____kn/m2, _____mm |
| 5 | anti-earthquake | _____level |
| 6 | brickwall needed or not | If yes, 1.2m high or 1.5m high |
| 7 | thermal insulation | If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested; . if not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former |
| 8 | door quantity & size | _____units, _____(width)mm*_____(height)mm |
| 9 | window quanity & size | _____units, _____(width)mm*_____(height)mm |
| 10 | crane needed or not | If yes, _____units, max. lifting weight____tons; max. lifting height _____m |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2009
Total Annual:
15 Million-20 Million
Employee Number:
100~110
Ecer Certification：
Verified Supplier
Qingdao Ruly Steel Engineering Co.,Ltd is a professional steel structure fabrication and construction company for light and heavy steel structure Design, Manufacture & Installation. The floor space of our steel structre fabrication factory is 35,000㎡, and the worksh... Qingdao Ruly Steel Engineering Co.,Ltd is a professional steel structure fabrication and construction company for light and heavy steel structure Design, Manufacture & Installation. The floor space of our steel structre fabrication factory is 35,000㎡, and the worksh...
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