Tianjin Lida Tube Co., Ltd., also known as Tianjin Lida Steel Pipe Group Co., Ltd., is a prominent manufacturer and trading company based in Tianjin, China, established in 1992. With a workforce ranging from 2,001 to 5,000 employees and annual sales revenue of nearly 5 billion yuan, the company specializes in the production and sale of a comprehensive range of steel pipes and related products. Their extensive product portfolio includes straight seam high-frequency welded pipes, hot-dip galvanized steel pipes, steel-plastic composite pipes, API casing, oil pipes, OCTG seamless pipes, line pipes, cylinder pipes, hydraulic support pipes, structural pipes, and slotted pipes. They also produce copper rods, PPGI, stainless steel seamless and welded pipes, and pipe fittings. Tianjin Lida Tube Co., Ltd. operates multiple production lines, including 10 for hot-dip galvanized steel pipes (600,000 tons/year), 11 for high-frequency welded pipes (800,000 tons/year), 6 for steel-plastic composite pipes (60,000 tons/year), and lines for oil casing pipes (200,000 tons/year). The company holds numerous certifications, including ISO 9001, ISO 9000, API 5L, and API 5CT, and its quality inspection center laboratory has passed National Laboratory Accreditation (CNAS). They emphasize technological innovation, automated equipment, and intelligent manufacturing, integrating advanced automation, AI-assisted design, smart logistics, and IoT monitoring. Their products serve diverse applications in mechanical manufacturing, steel structure engineering, construction projects, and infrastructure initiatives globally.
Tianjin Zhaolida Steel Pipe Co., Ltd. is a leading comprehensive enterprise and manufacturer based in Daqiuzhuang, Tianjin, the largest steel pipe production base in China. Established in 2002 with its primary group identity formed in 2009, the company operates as a large-scale group with multiple subsidiaries, including specialized manufacturing plants and international trading arms. The group manages over 400,000 square meters of facility space and employs between 500 and 1,000 professionals.
The company specializes in the production and processing of a wide range of steel products, including ERW black steel pipes, hot-dipped and pre-galvanized pipes, square and rectangular hollow sections, spiral welded pipes, and scaffolding tubes. Their technical capabilities extend to specialized products such as solar photovoltaic brackets, EMT conduits, and line pipes for the petroleum and natural gas industries. Operating up to 20 precision production lines with advanced computer-controlled technology, the group maintains an annual output capacity of approximately 450,000 to 880,000 metric tons.
Tianjin Zhaolida Steel Pipe Co., Ltd. is committed to international quality standards, holding certifications such as ISO 9001 and CE. Their products are manufactured to meet various global specifications, including ASTM, BS, EN, DIN, and JIS. Beyond manufacturing, the company provides extensive post-production services such as automatic threading, grooving, welding, painting, and anti-corrosion treatments. As a Class A distributor for major steel factories and a supplier for national key projects, the company exports its products to diverse international markets across North America, South America, Europe, the Middle East, Australia, and Southeast Asia.