Liaocheng Yihai Steel Pipe Co., Ltd. was established in 2008 and currently specializes in the production of welded pipes, thick-walled welded pipes, thick-walled rolled tubes, and is emerging as a base for Jiangbei rolled tube production and Shandong straight seam welded pipe factory. The company's main equipment includes heavy-duty rolling machines, 1000-ton roundness correction machines, and large-scale rolling machine sets. We produce and sell a variety of thick-walled rolled tubes, thick-walled welded pipes, large-diameter thick-walled plate coils, thick-walled submerged arc welded pipes, T-welded pipes, 45# thick-walled welded pipes, Q235 thick-walled welded pipes, Q345 thick-walled welded pipes, straight seam welded pipes, double-sided submerged arc welded pipes, and conical pipes, all with specifications ranging from Q235B, Q345B, C, D, E, 45#, 16MnR, X52, to X70. The outer diameter of our rolled tubes ranges from 350mm to 4000mm, with wall thicknesses from 10mm to 200mm. All...