Qingdao Zhongdayongji Steel Structure Co., Ltd. (ZDYJ) is a professional manufacturer and trading company based in the coastal city of Qingdao, China. With over 18 years of industry experience, the company specializes in the engineering design, fabrication, and installation of comprehensive steel solutions. Its diverse product portfolio includes industrial steel structure warehouses, workshops, aircraft hangars, and prefabricated buildings, as well as specialized infrastructure such as power transmission line towers, communication towers, microwave towers, and substation frameworks. The company operates a sophisticated manufacturing facility equipped with multiple production lines and specialized departments for H-beam steel and cladding materials. ZDYJ provides end-to-end services including OEM and ODM contract manufacturing, supported by a workforce of 101 to 200 employees. The company maintains a rigorous quality management system, holding ISO 9001 and ISO 14001 certifications, and has been recognized as an AAA-grade high-integrity enterprise. Its international trade operations reach over 60 countries across North America, Europe, Africa, and Oceania, serving major projects such as the Qingdao Olympic Sailing Center and various industrial flour mills and shopping malls.
Construction Design Steel Building Warehouse Built in Africa$65
Metal Steel Building Prefabricated Steel Building Prefab Building$35
Prefab School Building / Construction Steel Structure Buildings Prefabricated Steel Building$35
Quick Built Steel Structure Buildings Cow Dairy Cattle House Shed Farm$30
Steel Structure Building Metal Building Steel Barn$20
Pre-Built Steel Workshop Buildings Construction Metal Materials Kits Prefabricated Warehouse Office$19
Steel Frame Fabricators Pre Engineered Building Structure Pre Built Barndominium&Barndo&Barn$25
Prefabricated Steel Fabrication Building Steel Structure Commercial Building$30
Steel Fabrication Building Prefabricated Steel Structure Office Building$30
Light Steel Buildings Prefab Steel Structure Church Building$30
Prefabricated Steel Building Steel Structure Metal Building Warehouse$20
Prefabricated Building Steel Construction Light Metal Commercial Building Steel Structure Office Building$30
Purpose-Built 2-Storeys Spacious Family Steel Barndo Home Steel Frame Building Metal Warehouse Storage Barn$20
Steel Building Metal Commercial Steel Structure Construction School Building$30
Tianjin Longlong Metal Products Factory
🇨🇳 China
199111-50 peopleManufacturer/Trading Company
Established brand
Product customization
Low MOQ
OEM manufacturer
Shipments
52
Key customer
BEXXIM INTERNATIONAL
Key market
North America
Review
5
Prefab Building Light Steel Villa Light Gauge Steel Framing Home with Garden Room$190
Top Quality Professional EU Type Greenhouse with Z275/Az150/Azm275 Material Supply to Meet Your Price Point$11
Shandong Lanjing Steel Structure Company., Ltd.
🇨🇳 China
2010301-500 peopleManufacturer/Trading Company
Product customization
High-tech enterprise
Patented technology
OEM manufacturer
Shipments
1
Key customer
MY ECOHOME PR LLC
Key market
South America
Description
Shandong Lanjing Steel Structure Company., Ltd. is a professional manufacturer and national high-tech enterprise established in 2010, headquartered in Weifang, China. Operating from a factory area exceeding 66,000 square meters, the company employs between 301 and 500 people, including a dedicated 20-person R&D team. They specialize in the design, manufacturing, and installation of steel structure buildings and modular housing solutions, offering comprehensive one-stop services that encompass consulting, overseas project supervision, and after-sales support.
Steel Structure Chicken Shed House Farm Shed Poultry Building Prefabricated Warehouse Builidings$10
China Professional Supplier Manufacturer of Steel Structure Buildings Warehouse Structural Steel Building$10
Building Steel Structure Office Construction Material Steel Structure Building Structural Steel$10
Earthquake Resistance Light Steel Structure Building Light Steel Building School$10
Low Cost Steel Frame Modular Building of Steel Structure Building$10
High Strength Assembled Steel Construction Material Parts for Industrial Building Project Steel Structure Building Suppliers$10
Good Designed Building Modular Steel Structure Prefab Workshop Steel Structure Building Steel Worksho$10
Anti Earthquake Fire Proof Light Steel Structure Building Light Steel Building$10
Steel Structure Building Materials Prices Prefabricated Pre Engineered Fabricated Steel Buildings$10
Steel Structure Building Construction Shed Factory Building From Lanjing Steel Structure$10
High Quality Steel Frame Building Material Steel Structure for Industrial Buildings$10
Industrial Lagge Span Metallic Building Construction Project for Steel Structure Steel Buildings Steel Structure$10
Jiangsu Yunjoin Steel Structure Technology Co., Ltd, established in 2016 and headquartered in Xuzhou, China, is a large-scale professional manufacturer and trading company specializing in the design, production, and installation of advanced steel structures. Operating from a 100-acre production base with over 150,000 square meters of facility space, the company maintains an annual production capacity of 50,000 tons. They utilize 10 automated production lines, including specialized lines for steel structures and space frames, to deliver high-precision engineering solutions.
The company's core product portfolio includes bolt ball space frames, welding ball space frames, pipe trusses, tensile membrane structures, and light to heavy steel structures. They also specialize in glass curtain wall systems and prefabricated buildings such as warehouses, workshops, and stadiums. Notably, Yunjoin has achieved independent R&D and production for critical components like grid cone heads and bolt balls, supporting their robust OEM and ODM capabilities. Their engineering expertise is reflected in a diverse project history, ranging from aircraft hangars and coal storage sheds to stadiums and bridges for major clients like XCMG, BYD, and various international power plants.
With a workforce of 51 to 100 employees and an annual revenue between US$10 million and US$50 million, the company is committed to international quality standards, holding ISO 9001, ISO 14001, and ISO 45001 certifications. Their global reach extends to markets in Southeast Asia, the Middle East, and Eastern Europe, providing comprehensive project management from technical design to on-site installation guidance.
Durable Steel Structure Industrial Building Factory Workshop Metal Shed Steel Structure Building$29
Durable Steel Structure Industrial Building Factory Workshop Metal Shed Steel Structure Building$29
Professional College Student Training Building Steel Structure Building Workshop$29
Custom Steel Structure Building/steel Structure Frame, Providing Premium Quality for Unique Building Projects$39
High Quality Storage Building Steel Structure Dry Coal Shed Steel Space Frame Structure Buildings$29
Yunjoin Metal Space Frame Steel Structure Building Prefab Warehouse Commercial Prefabricated Steel Structures Building$39
Custom Steel Structure Building/steel Structure Frame, Providing Premium Quality for Unique Building Projects$39
Modern Prefab Steel Structure House Metal Building Frames for Warehouse Steel Shed Frames Modern Steel Structure Building$29
Prefabricated Steel Structure Warehouse Buildings Support Column with Steel Frame for Construction Home Structure Building$39
Prefabricated Steel Structure Warehouse Buildings Support Column with Steel Frame for Construction Home Structure Building$39
Prefabricated Steel Structure Warehouse Buildings Support Column with Steel Frame for Construction Home Structure Building$39
Hebei Baofeng Steel Structure Co., Ltd.
🇨🇳 China
2005201-300 peopleManufacturer/Trading Company
Established brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
797
Key customer
LANDY INDUSTRIAL LIMITED
Key market
Africa
Description
Hebei Baofeng Steel Structure Co., Ltd. is a comprehensive manufacturer and trading company established in 2005, specializing in the design, development, and production of prefabricated buildings and steel structure systems. Headquartered in Botou City, Hebei Province, the company operates a 50,000-square-meter factory equipped with automated H-beam welding apparatus and robotic intelligent encoding systems. Their extensive product portfolio includes steel structure warehouses, workshops, light steel villas, poultry farms, and various modular housing solutions such as container houses, expandable houses, and folding houses. Additionally, they manufacture essential building components including C/Z purlins, floor decking, welded H-beams, and various composite panels (rock wool, polyurethane, and glass fiber). With a workforce of approximately 300 employees, including a dedicated team of designers and engineers, the company provides full-service project solutions from initial design to installation. Hebei Baofeng Steel Structure Co., Ltd. holds ISO 9001 and CE certifications, ensuring high standards for safety, earthquake resistance, and environmental protection. The company has a strong international presence, exporting to over 40 countries across regions such as North America, Europe, and Asia, supported by strategic logistics proximity to Tianjin and Beijing.