Products

Guojian Steel is a primary supplier of Truss Steel Structure, offering bulk purchasing, custom fabrication, and wholesale of truss components, as well as manufacturing based on client-provided drawings. We independently produce a wide range of long-span truss steel structures—including prefabricated components for factory roofing, stadiums, bridges, and municipal projects—that combine high strength, lightweight properties, and corrosion resistance. Our products feature factory prefabrication for convenient on-site assembly and are available in Q235B or Q355B steel grades with options for hot-dip galvanizing and anti-corrosion coatings. With controllable delivery schedules, our solutions are suitable for industrial buildings, public venues, and canopy structures, and we provide integrated services covering detailed design, fabrication, and delivery.

Guojian (Tianjin) Steel is a major manufacturer that offers services such as batch procurement for engineering projects, detailed design optimization, and sample testing. Our Reinforced Cast‑in‑place Ground Pile is reinforced with national standard steel bars, featuring high load-bearing capacity and excellent anti-sagging performance. It is suitable for soft soil foundations, high-load photovoltaic power stations, large photovoltaic car shelters, and steel structure factory building foundations.

Guojian (Tianjin) Steel Manufacturer has its own independent warehousing and processing lines, specializing in the production of Square Steel Tubes suitable for photovoltaic (PV) steel structures. We offer a variety of product specifications and support pre-processing services, including on-demand cutting, stamping and bending. Our inventory is sufficient and production scheduling is flexible. We provide a one-stop supply solution covering photovoltaic installation components and foundation structures, and are equipped with complete product technical documentation to meet the inspection, acceptance and bid document requirements of the projects.

Guojian Steel Co., Ltd. is a manufacturer and supplier of pipe clamp, accepting large-volume orders and offering customization, wholesale, and contract manufacturing services for various types of clamp fasteners. The factory produces both standard and custom (non-standard) clamps suitable for applications in photovoltaics, piping systems, and municipal engineering. We offer a range of anti-corrosion finishes, maintain precise dimensional tolerances, and support manufacturing based on technical drawings to meet the supply requirements of diverse engineering projects.

Guojian Steel Co., Ltd. is a manufacturer and supplier of U‑bolt, handling large-volume orders and offering customization, wholesale, and contract manufacturing services for various U-bolt fasteners. Our factory operates dedicated fastener production lines capable of manufacturing both standard and non-standard (custom-shaped) U-bolts suitable for applications in photovoltaics, piping systems, and steel structures. We offer optional anti-corrosion treatments—such as hot-dip galvanizing—and ensure strict dimensional tolerance control. We support manufacturing based on technical drawings and provide stable supply chains for diverse engineering projects.

Guojian (Tianjin) Steel’s new Zinc‑Aluminum‑Magnesium Coated Steel Structure structures utilize a multi-element hot-dip coating process, representing a new generation of outdoor corrosion-resistant steel products. Compared to traditional hot-dip galvanizing, these structures offer significantly enhanced salt spray and rust resistance, making them ideal for photovoltaic mounting systems, solar carports, and outdoor structural steel frameworks. Manufactured using national standard Q235B/Q355B base materials, the products support custom fabrication of profiles and connection components. Third-party coating inspection reports are available to meet the needs of both domestic projects and export orders, ensuring long-term durability in highly corrosive environments.