Changsha Hongtu Concrete Products Co., Ltd. is a professional manufacturer of reinforced concrete pipes and related accessories. We produce various specifications of steel socket pushing pipes, socket pipes, flexible socket pipes, and PVC lined pipes with internal diameters ranging from 300mm to 3600mm. Additionally, we offer related accessories such as reinforced concrete prefabricated wells, well casings, and load-bearing manhole covers. We also undertake various special pipe materials and cement products. We have a complete product testing system and professional testing personnel. As one of the earlier enterprises in Changsha to produce reinforced concrete pipes for municipal infrastructure, we applied and obtained the National Industrial Product Production License for Reinforced Concrete Water Transmission Pipes from the Hunan Provincial Administration for Quality Supervision, Inspection, and Quarantine in 2011. We are also among the earlier manufacturers in Changsha to obtain ...