Products

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.

Guojian (Tianjin) Steel Industry specializes in manufacturing China Tile Roof Solar Mounting System, offering a one-stop service that includes batch purchasing for residential and industrial and commercial projects, customized design for specific tile specifications, and roof load verification. This system uses 304 stainless steel hooks combined with anodized aluminum rails. The lightweight design ensures roof waterproofing performance, and it can be adjusted in height, suitable for roofs of different slopes, including concrete, clay, and glazed tiles, reducing the amount of tile removal during installation and lowering the risk of leakage.

As a primary supplier of specialized Special Heavy‑Duty Steel Structure, Guojian Steel Co., Ltd. caters to large-scale procurement, custom engineering projects, and bulk supply of ready-stock components, meeting the needs of heavy infrastructure and large-scale industrial projects. Fabricated from high-strength, thick steel plates (such as Q355B and Q355NL), these structures offer exceptional load-bearing capacity and impact resistance. They enable the production of high-tonnage, long-span non-standard components through advanced factory prefabrication and modular assembly. Manufactured in strict accordance with national standards for heavy steel structures, the products come with comprehensive one-stop services—including detailed design, thick-plate welding, flaw detection, and complete delivery. Widely utilized for heavy equipment bases, heavy-load industrial facilities, large-scale support structures, and engineering machinery mounts, these products ensure stable delivery for bulk orders and perform reliably under high-load, rigorous operating conditions, making them the preferred choice for heavy infrastructure projects.

Guojian Iron and Steel Co., Ltd. supplies large quantities of Floating Solar PV Mounting System, and welcomes procurement inquiries. This above-water support system realizes the dual-use model of above-water photovoltaic power generation and underwater aquaculture, greatly improving the utilization rate of water areas and the output value of unit water areas. The product is easy to install, has a simple structure and is flexible to operate. It is compatible with various arrangements of photovoltaic modules. It is green, environmentally friendly and reusable. It takes into account both power generation efficiency and breeding income. It is the preferred supporting product for fishery and photovoltaic complementary projects.