TONGYU.TONGYU (TONGYU STEEL PIPE) was founded in 1990, is a large steel pipe manufacturing enterprise in East China, covering an area of more than 800 acres, with assets of nearly 800 million yuan. With an annual production capacity of 500,000 tons, our products are widely used in major national projects such as oil and gas transportation, urban water supply and heating, port terminals, bridges and chemical equipment. The main products include spiral submerged arc welded pipes, JCOE straight seam submerged arc welded pipes, heat preservation pipes, stainless steel pipes and steel structures, covering the fields of anticorrosion, pressure vessels, etc., serving the needs of energy, infrastructure and other multi-industry.