Audited Supplier
China's Premier Steel Structure Factory Buildings for the Global Market
LJ steel structure is a professional steel structure building manufacturer located in the port city Weifang. Driven by innovative technology and creative thinking, we customize the right approach for customers' projects through smart construction design and meticulous cost analysis.
LJ steel structure provide you with full solution, from design to constrcution, we involved in your steel structure project. Free 3D sketch and design drawing is available. And LJ gives strong technical support online.
With professional research and development team, and careful quality control team, we guarantee that our customers will receive products with great welding and accurate dimensions.Customers from Aisa, Africa, America, Australia and Europe are satisfied with our turn-key service.
We have strict standards and quality inspec.tion processes for raw material procurement.Each batch of raw materials will have corresponding quality certificates and material in-spection reports to ensure that these rawmaterials meet national and industry standards.
We are a professional steel structure factory with outstanding design capabilities. Our factory is equipped with a professional design team proficient in using a variety of advanced design software.When it comes to different project phases and client requirements, we have corresponding software solutions.
Our factory is equipped with advanced steel structure processing equipment, which greatly improves product quality and enables steel structure products to reach higher standards in strength, precision and appearance.
We have IS09001 quality management system certification, and all finished products will be tested, including metal flaw detection, paint thickness, galvanizing thickness, etc., to ensure the beauty and service life of the steel structure.
We can provide you with pictures, and video information of all production links, from raw materials to steel processing, the whole process of visual production. You can even video call us to watch the workshop production.
Container and pallet packing will protect the surface paint or zinc of the steel structures.
In order to facilitate your installation, we will mark each component in sequence according to the drawings.
The installation instruction and video will be provided, we can also send our engineers to your site as installation guides, they will teach your people how to build the project.
The Steel Structure Warehouse is ingeniously designed with a robust main steel frame comprising H beams, C purline, and Z purline components. Featuring a roof and walls constructed from an assortment of panels, wallboard, and steel tiles, this steel building offers unparalleled benefits: expansive spans, exceptional strength, lightweight design, cost-effectiveness, superior temperature control, energy efficiency, and an aesthetically pleasing appearance. Installation is swift and straightforward, ensuring excellent insulation, durability, spatial efficiency, remarkable seismic performance, flexible layouts, and recyclability.
| Main Structure | H-section steel | Q345 steel H beam, box column available |
| Welding | Automatic Submerged Arc Welding | |
| Rust removing | Shot blasting | |
| Surface processing | twice primer and twice finish Alkyd paint or hot dip galvanized | |
| High strength bolt | Grade 10.9 | |
| Substructure | Angle brace | L50*4, steel Q235, process and painting |
| Cross bracing | Dia.20 round bar, steel Q235 process and pre-galvanized | |
| Tie bar | Dia 89*3 round pipe, steel Q235 process and painting or pre-galvanized | |
| Batter brace | Dia. 12 round bar, steel Q235 process and pre-galvanized | |
| Ordinary bolt | Galvanized bolt | |
| Roof | Purlin | C channel or Z channel, steel Q235, galvanized |
| Roof panel | (50mm, 75mm, 100mm, 150mm) Sandwich panel , corrugated galvanized iron sheet | |
| Transparent skylight | 1.2mm FRP | |
| Accessories | Sealant, self-tapping screw | |
| Edge cover | Made of color steel sheet | |
| Gutter | Made of steel sheet with thickness 0.8mm, or PVC | |
| Rainspout | PVC pipe | |
| Wall | Purlin | C channel or Z channel, steel Q235, galvanized |
| Wall panel | (50mm, 75mm, 100mm, 150mm) Sandwich panel , corrugated galvanized iron sheet | |
| Accessories | Sealant, self-tapping screw | |
| Edge cover | Made of color steel sheet | |
| Ventilator | Unpowered axial-flow ventilator or monitor roof | |
| Door & Window | Electric rolling door/sliding door, PVC/ Aluminum alloy window | |
| Crane | Ranging from 5 tons to 20 tons | |
| customized service and personalized design are welcomed!! | ||
Q1: Is your company a factory or trading company?
A: We are manufacturer with foreign trade department, so you can get competitive price as well as professional service. And you are always welcomed to visit our factory at any time.
Q2: What are your main products?
A: We provide steel structure warehouse, workshop, plants,chicken house, prefabricated house, container type house, garage, aircraft hangar, sandwich panels and other construction materials. According to the requirements of different projects and clients, we will supply different designs and steel products.Customized design is available.
Q3: What's the quality assurance you provide and how do you make quality control?
A: Quality-first is our core value. LJ steel structure quality assurance team and quality control team have developed a rigorous quality inspection system based on ISO9001. Testing Laboratory guarantees qualified raw materials and high- standard product.
Q4: Do you provide installation instructions and on-site installation services?
A:Every project will provide the installation instructions, and if you need, we also would like to send our engineer to the local construction site for helping the installation work.
Q5: What should I provide to get a complete quotation?
A: Please provide information as follows:
| 1.Project location | 5.Length (sidewall,m) | 9.Window material, style,size |
| 2.Snow load | 6.Width (end wall, m) | 10.Door material, style,size |
| 3.Wind load | 7.Wall Height (eave, m) | 11.raining condition |
| 4.Seismic magnitude | 8.Middle column allowed or not | 12.Crane needed or not |
| 13.other information if necessary | ||
Shandong Lanjing Building & Construction Co., Ltd. Is a professional manufacturer for Steel structure building,Container House and Prefab house in China for more than 10 years.
Exported to 3o+ countries and completed 100+ projects.ONE-STOP services and Customized solutions.IS09001, BV, SGS, TUV audited
Lanjing Building & Construction offers comprehensive ONE-STOP services, delivering customized solutions that include Consultation, R&D, Design, Manufacturing, Installation, Overseas project supervision and after-sales support.
We specialize in creation of high-quality Steel structure Warehouse, Workshop, High-rise steel fame building and Container house for Labor camp, worker container etc.
We provide steel building to clients in the sectors of Oil & Gas, Mining, Energy dormitory, Site office, Shower container. Toilet Infrastructure and Construction projects Steel Structure built his reputation Reliability and Service.
Our factory is located in Weifang, China, with a factory area of more than 12 hectares ((120.000SOM )and a registered capital of CNY50 Million, after more than 10 years of development, we have strong technical strength and comprehensive product lines.Steel Structure has completed 100+ projects in more than 30 countries, We has built long-term partnerships with different international companies as well as organizations & government.
