Wholesale Mounting Accessories for Secure and Versatile Equipment Installations

Guojian (Tianjin) Steel Co., Ltd. is a specialized manufacturer of photovoltaic (PV) purlin connectors, offering bulk purchasing, custom non-standard specifications, and free samples. Designed to fit the company's own C, Z, U, and "J"-shaped steel purlins, these connectors are made from high-strength Q355B steel and feature a dual anti-corrosion coating (hot-dip galvanizing or Zinc-Aluminum-Magnesium alloy), ensuring 25 years of rust resistance in outdoor environments. They feature standardized pre-drilled holes for rapid splicing and purlin extension, effectively distributing wind and snow loads to stabilize the entire PV mounting structure. The company exports to over 20 countries across Europe, the Americas, and Southeast Asia, consistently undertaking a wide range of PV engineering 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.