Twin-Dome Steel Structure
One large and one small steel dome. Limited by site, the small dome was assembled on a floor platform and lifted as a whole; the large dome was assembled in place—flexible methods reflecting strong adaptability.
With over a decade of expertise in steel structure detailing, fabrication and construction, we deliver integrated end-to-end service that lets clients entrust us with confidence. We specialize in irregular steel structures and skylights, refining rich experience with a relentless pursuit of craftsmanship.
Precision Manufacturing · Integrated Expertise · Reliable Quality · Craftsmanship
We are a comprehensive enterprise specializing in steel structure engineering construction and technical services, dedicated to providing clients with a complete, integrated service—from project design, detail drawings, component fabrication to on-site installation.
Our core business covers a wide range of steel structures, including complex irregular steel structures, long-span spatial truss structures, lightweight and efficient space frame structures, and multi-story frame structures for industrial and commercial buildings. Regardless of project scale or technical difficulty, we possess mature technical reserves and extensive hands-on experience to ensure high-quality delivery.
Centered on our professional team and backed by advanced detailing capabilities and a precise fabrication system, we guarantee the accuracy of steel components and controllable, reliable quality. During construction, we adhere to standardized, regulated operations, balancing safety, quality and schedule to create steel structure masterpieces that stand the test of time.
Our predecessor began steel fabrication in 2005, among the first in China to enter the field. In 2007 we expanded into construction, forming a 'fabrication + construction' supporting business model. The plant reaches an annual capacity of 1,500 tons and is capable of first-grade weld welding and inspection.
From key domestic projects to overseas work—covering steel construction, skylights and irregular structures
One large and one small steel dome. Limited by site, the small dome was assembled on a floor platform and lifted as a whole; the large dome was assembled in place—flexible methods reflecting strong adaptability.
Roof of large-span triangular heavy truss; members intersectingly cut then assembled on site with segmented lifting for precision. The hall roof uses inverted triangular space tube trusses, max span 72m, total GFA about 101,600 m².
Space frame split into two zones assembled on different-level floors; hydraulic jacks lifted the first-level frame to align with the second, then both were lifted and installed as one.
Covers teaching, lab, dormitory, complex and multi-function hall buildings. With a tight schedule, we undertook 5 structures and delivered on time, passing acceptance.
Max span 46m, single lift over 100t, involving overhanging and dual-crane lifts in the super high-risk category. From scheme, expert review, detailing, fabrication to installation—all completed independently with high quality.
Top platform assembled in place. Six-arm hub nodes prefabricated from plates control beam angles in advance for a smooth result; full process from detailing, modeling, fabrication to glass installation, delivered on schedule.
Six-arm hub nodes with over a hundred unique, non-repeating nodes. We overcame node detailing, fabrication and assembly-precision challenges for successful delivery.
Seven steel skylights in various forms—six-arm hub, intersecting and dome—showcasing comprehensive skylight expertise.
Arched skylight uses disc drum nodes, assembled on floor and lifted by electric hoist. This lifting method was originally developed by us, passed expert review and won client praise.
Five skylights on a 5th-floor roof (two spans >36m). We developed a new method: rigid load layer + special equipment tensioning + closed wooden platform—strong, no sag, passed review and patented.
We completed detailing; hub nodes and square-tube cutting use intersecting-line precision machining; on-site coordinate nodes with total station for accurate positioning and smooth curvature.
Five petal units, bodies made of hot-bent steel tubes transported to site and assembled with total station. From detailing, cutting, ground assembly to mating—all done in-house, approved by client.
Boxing Mahu Lake project: three inner and outer layers of petals, each double-curved. Standard sections as temporary supports, on-site positioned assembly overcame difficulties and delivered on time.
Beams assembled from plates; shed uses irregular steel and double-curved aluminum panels, ~16m tall. After repeated review, multi-crane coordinated lifting was finalized.
Key project of China Xiong'an Group—canopy for the express line to Beijing Daxing Airport, covering shell steel, double-twist glass mullions, metal roof and glass curtain wall with extreme precision demands.
Double-curved irregular steel for export per European standards. Strict fabrication and acceptance, internal & external hot-dip galvanizing after weld inspection, multi-layer careful packing—highly praised by the overseas client.
From a drawing to a masterpiece, we answer expectations with craftsmanship and honor promises with quality
Steel Road 1, Qingchi St., Kuiwen Dist., Weifang, Shandong
From a single drawing to a finished masterpiece lies the rigorous control of every step—detailing, fabrication and installation. We know clients entrust us not just with a project but with trust. Facing complex double-curved structures or high-altitude long-span challenges, we use solid fabrication strength and mature experience to craft every component finely and install every joint precisely. Choosing us, you gain not only a reassuring project but wholehearted service. With full professionalism and dedication, we build every trust you place in us.