Dalian Haotainai Plastic Pipe Technology Co., Ltd. was established in 2015 with a registered capital of 50 million RMB. It is a domestic research and manufacturing company that utilizes high molecular materials, combining intermolecular homocrystalline structure fusion bonding to produce continuous fiberglass reinforced composite polyethylene and polypropylene (CFRTP) PP pipes and their accompanying fittings (rigid core pipes). This has ushered in a new era of "replacing steel with plastic." The company's scientific research achievements have been highly recognized by multiple departments including the Ministry of Construction and the Ministry of Environmental Protection! It is a forward-looking landmark for energy conservation and environmental protection in China. The company currently has an annual production capacity of rigid core pipes worth 630 million RMB. The product specifications are: DN80-DN1200 (nominal diameter) mm, with a usage pressure range of 1.0Mpa-10Mpa. The products are mainly used in thermal heating (primary and secondary networks), hot spring water, central air conditioning, raw water supply, seawater desalination pipeline systems, industrial water supply and drainage, sewage pipeline systems, mine media, fire protection, and other pre-buried and overhead pipeline networks. They are also widely applied in comprehensive utility tunnels and sponge city pipelines, industrial and chemical pipelines, oil and gas transmission pipelines, etc.