Zhejiang Xindeda Special Pipe Industry Co., Ltd. was founded in 1997, covering an area of 30,000 square meters. Its holding companies include Wenzhou Xindeda Special Ma- terials Co., Ltd., Zhejiang Honghua Special Steel Technology Co., Ltd., and Zhejiang Chengdeda Stainless Steel Co., Ltd. . National high-tech enterprise, established in the pro- vince Level postdoctoral workstation, jointly cultivates postdoctoral fellows with the Institute of Metal Research, Chinese Academy of Sciences and Zhejiang University. It is a company specializing in the production of special nickel-based alloy seamless tubes, stainless steel heat exchange tubes and U-shaped tubes. The main brands are nickel-ba- ed alloys: Incoloy800H, Inconcl625, Inconel600Monele400, Alloy20, C-276, C-22, etc.; Austenitic stainless steel: S30408, S32168, S31603, S31703, S31008, S34709, S39042, UNS N08926, S31254 (254Smo), etc.; Urea grade: 316Lmod,TP725LN, TP310HCBN; duplex stainless steel: S31803, S22053, S32750, S32760, etc.; silicon-containing stainless steel: 0- 0Cr14Ni14Si4, S32615, KY706, C4, C5 and other materials. Products are used in high-pressure vessels, oil exploration, chemical industry,Marine, shipbuilding, high-speed train and other equipment and engineering projects; urea-grade stainless steel seamless pipes have been tested by the National Petroleum Drilling and Refining Equipment Quality Supervision and Inspection Center. All performance indicators have reached the international advanced level and have been used in Tsinghua University Wuhan Equipment p- rocess co., ltd.Prepare and install urea high-pressure scrubber and urea synthesis tower equipment. The company produces stainless steel seamless pipes. The main raw mate- rial is pipe blanks, which come from domestic large and medium-sized steel mills such as Yongxing Special Steel and Bao. It has passed the DNV ISO9001:2008 quality system certification and obtained national quality supervision Special equipment manufacturing license for A2-B pressure piping components of the General Administration of Inspe- ction and Quarantine, EU PED (97/23/EC) certification, German AD-2000 certification, American material ASME product certification, Russian GOSTR certification, Italian classi- fication society RINA factory approval, Bureau Veritas BV factory approved, American Bureau of Shipping ABS factory approved, China Classification Society CCS factory appr- oved, successfully used in Luxi Chemical Group, Hubei Changfa and other large pressure vessel manufacturers, and exported to the United States, Germany, the Netherlands, Brazil, Turkey dozens of countries and regions,Well received by users. Customers at home and abroad are welcome to visit and negotiate, and work together to create a brilli- ant future in the world.