YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are a steel structure fabricator and EPC contractor based in Jining, Shandong, China, with 17 years of experience since 2009 and delivered projects in 60+ countries. Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as one manufacturing group under the same ultimate ownership. SynJect is the group’s export brand.
Large-Scale Building Roof System Panels
The roofing panels are specifically designed for modern building roofing systems. Manufactured from high-strength alloy materials through precision roll-forming, they offer excellent structural strength and airtightness, meeting the load-bearing, waterproofing, thermal insulation, and aesthetic requirements of various building roofs. The product offers quick installation and excellent structural integrity, effectively withstanding the effects of wind, rain, UV radiation, and temperature fluctuations, ensuring a long service life. Suitable for a wide range of applications including industrial plants, logistics warehouses, large-scale venues, airports, and commercial buildings, it is the preferred material for modern building roofing and cladding.
Roofing Materials for Large-Scale Venues and Industrial Buildings
Core Features & Advantages
Roof panels are a common roofing material in modern architecture and are widely used in various industrial and residential buildings. They offer excellent waterproofing, corrosion resistance, thermal insulation, and wind resistance, making them a vital component of roofing systems. Depending on specific application requirements, roof panels are available in a variety of materials, such as metal roof panels and polyurethane roof panels, which can effectively improve a building’s energy efficiency and extend its service life.
♦ Suitable for large-span roofs, providing stable load-bearing capacity and resistance to deformation
♦ Excellent overall waterproofing and sealing performance, with scientifically designed panel overlaps
♦ Outstanding thermal insulation performance, reducing building energy consumption
♦ Weather-resistant, corrosion-resistant, and resistant to UV-induced aging
♦ Quick and easy installation, suitable for prefabricated construction
Applications
Roof panels are widely used in roofing systems for various types of buildings, particularly in industrial and commercial structures. For industrial plants and warehouses, roof panels provide robust waterproofing, thermal insulation, and wind resistance, ensuring long-term stability in harsh environments and reducing roof maintenance costs. Commercial buildings, such as shopping centers and office towers, also leverage the thermal insulation properties of roof panels to help regulate indoor temperatures, reduce air conditioning energy consumption, and enhance the building’s aesthetic appeal through modern design.
♦ Large-scale livestock farms, chemical workshops and other special places
♦ Gymnasium, exhibition center, large venue
♦ Modernized logistics warehouses, cold chain storage buildings, roof structures
♦ Roofs of large commercial complexes and supporting buildings in industrial parks
Vision & Mission
We are committed to providing safe, efficient, and environmentally friendly solutions for global customers through continuous technological innovation and exceptional product quality, driving industry progress and collectively creating a better future.
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SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Headquartered in the High-Tech Development Zone of Jining, Shandong Province, Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as a unified manufacturing group under the same ultimate ownership. Globally, we deliver our end-to-end solutions through our dedicated export brand, SynJect.
Drawing on 17 years of export expertise and a proven track record across more than 60 countries, we provide integrated EPC contracting and heavy fabrication. This global reach is backed by our robust manufacturing footprint: an 80,000 m² facility with an annual capacity exceeding 500,000 tons, RMB 120 million in registered capital, and a skilled workforce of over 600 professionals.
Our core expertise spans civil construction, petrochemical facilities, long-distance pressure pipelines, heavy steel structures, pressure vessels, and skid-mounted refueling stations.
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INDUSTRIAL STEEL BUILDINGS
