Zhejiang Da Da Stainless Steel Co., Ltd. is located in the hinterland of Moganshan, a national-level scenic spot and one of China's four summer resorts-Huzhou Moganshan High-tech Zone Linhang Industrial New Zone, with a very advantageous geographical location. The company is close to Shenjia Huhang (S13) Expressway, and the entrance and exit of Deqing Leidian is close at hand. Provincial Highway 09(S304) crosses the front of the company and is connected to Hangzhou Ring Expressway, Hangzhou-Nanjing Expressway and Shanghai-Hangzhou Expressway. The company is 10 kilometers away from Deqing Station of Hangzhou-Nanjing High-speed Railway, 20 kilometers away from Linping Station of Shanghai-Hangzhou High-speed Railway, and 30 kilometers away from Hangzhou East Railway Station. It can reach Hangzhou Xiaoshan International Airport in half an hour and Shanghai Pudong International Airport in one hour. The Beijing-Hangzhou Canal runs through the whole territory, and the water, land and air transportation is very convenient.

The company has inherited the brand foundation of Hangzhou Evergrande Stainless Steel Co., Ltd. and Zhejiang Everbright Stainless Steel Co., Ltd., and was jointly established in December 2004 with the introduction of Hong Kong capital, focusing on the manufacture of stainless steel pipes. The total area of the factory is more than 60000 square meters, with a total investment of nearly 100 million yuan. It has more than 10 domestic advanced stainless steel seamless pipe production lines (cold drawing units and cold rolling units), and has imported many stainless steel welded pipe production lines and welding equipment from the United States, Japan, South Korea; can produce stainless steel seamless pipe: outer diameter (6-530mm)× thickness (1-45mm)× length (1000-15000mm), stainless steel welded pipe: outer diameter (6-530mm)× thickness (1-45mm)× length (1000-15000mm), clamp type thin-walled stainless steel water pipe: diameter (DN15-300)× thickness (0.8-4mm)× length (4000-6000mm); the main materials are 304, 304L, 321, 316, 316L, 317L, 321H, 310S, 347, 347H, 409, 430, special materials 2205, 2507, 904L, 2520 Si2, GH3030, HG800, etc. Special materials and specifications can be produced and supplied through negotiation between the supply and demand sides.

The company can organize production according to GB, HG, SH, ASME/ASTM, JIS, DIN and other standards. The pipe blank and welded pipe required by the company for the production of seamless pipes come from Baosteel, Taigang, Zhangjiagang Posco, Huaxin Lihua, Yongxing Special Steel, Qingshan Special Steel and other brand steel mills. Special materials can also be imported and the quality of raw materials is reliable. The company organizes production in strict accordance with the ISO9001 quality management system, with Germany imported spectrometer, eddy current flaw detection, ultrasonic flaw detection, X-ray flaw detection real-time imaging system, endoscope, hydraulic testing machine, microcomputer control universal material testing machine, hardness machine, impact testing machine, metallographic microscope and other advanced testing equipment and supporting physical and chemical analysis facilities, from raw materials to production process to inspection and testing methods are strictly and effectively controlled.  

The company's products are widely used in chemical, petroleum, chemical fiber, papermaking, natural gas, nuclear power plants, boiler heat exchangers, shipbuilding, food machinery, pharmaceuticals, water supply, environmental protection, construction, aerospace and other fields. The output of seamless pipes and welded pipes ranks among the top ten in the industry.

The company is a national high-tech enterprise, a specialized and special new small and medium-sized enterprise in Zhejiang Province, and has a high-tech R & D center in Zhejiang Province. It has a national special equipment (pressure pipe components) manufacturing license, and a Zhejiang water-related product sanitation license. It has passed the EU PED Pressure Directive certification. At the same time, it has also passed the ISO9001 quality management system certification, ISO14001 environmental management system certification, and ISO45001 occupational health and safety management system certification, it has been publicized by the State Administration for Industry and Commerce as a "contract abiding and credit abiding" enterprise. It is a AAA level "contract abiding and credit abiding" unit in Zhejiang Province. It has been awarded the civilized unit of Huzhou City and the quality award of Deqing county government. It is a science and technology-based small and medium-sized enterprise and county-level research and development center in Deqing County.

The company has more than 20 patents, including 5 invention patents and more than 10 utility model patents. It has 21 scientific and technological achievements transformation, of which "food grade thin-walled stainless steel seamless steel pipe technology" and "biochemical treatment technology of stainless steel washing wastewater" have been respectively recognized as new industrial products in Zhejiang province. The company also participated in the completion of GB/T 21833.3-2024 "Austenitic-Ferritic Duplex Stainless Steel Seamless Steel Pipe Part 3: drafting and preparation of national standards for oil and gas transmission pipes.

The company strives to become the healthiest, most advanced and most competitive stainless steel pipe manufacturer in China, focusing on building a century-old brand.

Create a stainless brand, do a hundred years greatly!