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.
Steel Structure Maintenance Special Insulation Cotton
Specialized insulation wool for steel structure maintenance is a dedicated insulation material designed for the long-term maintenance, renovation, and thermal insulation upgrades of steel structures. The product offers excellent thermal insulation, fire resistance, moisture resistance, and anti-aging properties. It effectively reduces heat loss in steel structures, enhances the building’s energy efficiency, and minimizes environmental damage to the main structure. Widely used in maintenance and renovation projects for steel-framed factories, warehouses, stadiums, space frame structures, and various industrial buildings, it is easy to install, delivers consistent performance, and provides long-lasting protection for steel structures.
High Efficiency Thermal & Fireproof Insulation Material
Core Features & Advantages
It offers excellent fire resistance, moisture resistance, corrosion resistance, and weather resistance, effectively reducing environmental damage to steel structures and extending their service life. The material is lightweight and flexible, making it easy to cut and install. It is suitable for maintenance applications on various steel structure roofs, walls, beams, and columns, and also provides sound insulation and noise reduction. With its high overall stability and long service life, it is an ideal material for energy-saving retrofits and routine maintenance of steel structures.
♦ Excellent thermal insulation properties and low thermal conductivity
♦ High fire resistance rating, ensuring safety and reliability
♦ Moisture-resistant, anti-aging, and highly weather-resistant
♦ Easy to install and highly adaptable
♦ Sound-absorbing and noise-reducing, enhancing building comfort
Applications
Insulation batting is widely used in thermal insulation renovation, maintenance, reinforcement, and energy-saving retrofit projects for various types of steel-structured buildings and industrial facilities. It can be applied to steel-structured factories, warehouses, stadiums, space frame roofs, steel-structured exterior walls, beams, columns, and equipment supports, providing effective protection against issues such as aging and peeling insulation layers, deteriorating thermal insulation performance, and structural damage caused by temperature fluctuations in older buildings.
♦ Maintenance of Steel-Frame Industrial Buildings
♦ Thermal Insulation Retrofits for Warehousing and Logistics Facilities
♦ Maintenance of Steel Structures in Venues and Public Buildings
♦ Thermal Insulation for Steel Beams, Columns, and Space Frames
♦ Energy Efficiency Upgrades for Older Steel-Frame Buildings
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.
CONTACT
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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
