Changzhou LongHan machinery co., Ltd. Is an enterprise specializing in the production and sales of steel pipes in East China. With the business philosophy of "integrity management, pioneering and innovation", we are committed to manufacturing, precision processing, warehousing and logistics, new energy, high-speed rail parts, urban construction and other fields. The company is located in the eastern suburb of Changzhou, a famous city in the south of the Yangtze River. It is very convenient for transportation between Hengning Road, Shanghai-Nanjing Expressway, Changzhou East Bus Station, Beijing-Shanghai High-speed Railway and civil aviation. Since its establishment, the company has occupied the market with strength, strives for customers with sincerity, establishes credibility with high quality and efficiency, and thus makes the company grow stronger and its social reputation is continuously improved, occupying an important position in the same industry. The company has a complete and effective quality management and quality assurance system. It has passed the Lloyd's ISO9001: 2008 quality management system certification, national special equipment manufacturing license certification, EU PED 97/23/EC certification, ISO14001-2004 environmental management system certification. The company can produce 8 ~ 168.3mm in the outer diameter according to national standards (GB), metallurgical industry standards (YB), American ASME and ASTM standards, API standards, European EN standards, Japanese JIS standards, German DIN standards and British BS standards. Seamless steel pipe (hot-rolled and cold-drawn, cold-rolled) with various thicknesses and delivery conditions from 1 to 18 mm. The main types are seamless steel tubes for high-pressure boilers, seamless steel tubes for medium and low-pressure boilers, and petroleum cracking. Seamless steel pipe for seamless steel pipe, high pressure chemical fertilizer equipment, seamless steel pipe for structural use, seamless steel pipe for conveying fluid, ASME standard T series high pressure boiler seamless steel pipe, API standard series oil well pipe, seamless pipe for engineering machinery piping, cold Pull out a variety of high-quality carbon structural steel, alloy steel, shaped pipe and other seamless steel pipe products such as internal thread seamless steel pipe. The company firmly adheres to the road of technology, quality and efficiency, strengthens and enhances the quality awareness and sense of responsibility of each employee, and lays a solid foundation for the production of high quality, high precision, high-grade cold drawn and cold rolled seamless steel tubes...The products are sold to large oil pipelines, thermoelectricity, chemical, electric power, automobile manufacturing, shipbuilding, boilers and other industries all over the world. The products are exported to more than 70% and sold to Italy, the United States, South Korea, India, Argentina, Australia, Germany, Singapore, Thailand. More than 40 countries and regions. Warmly welcome new and old customers to visit our factory!