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Shanghai Dongzi Valve Co., Ltd.-a professional valve manufacturer, a top ten valve manufacturing enterprise in the country, a national high-tech enterprise, an international entity enterprise specializing in scientific research and design, manufacturing and sales, technical exchange and import and export trade of high-end valves The company has strong technical force, sophisticated production and processing equipment, and complete testing equipment. It has formed a technical system with independent intellectual property rights as the core, relying on science and technology for innovation; investing in the establishment of a technology research and development center for technology improvement, innovation and new product development, And obtained the "Special Equipment Manufacturing License" pressure pipeline license number TSF710089-2020 issued by the National Quality Supervision, Inspection and Quarantine Bureau, and also won the China Standard Research Institute (Beijing) Certification Center, China Standard Research Certification and CE certification.

The CE certification of the quality system issued by the European Commission agency, certificate number HPIVS / P1001-374-0-01. In addition to adopting national standards and industry standards, American API.ASME. Japanese JIS. British BS. German DIN and other standards are also adopted. Since the establishment of the company, it has always adhered to the quality policy of "exploring the market with quality and creating benefits with ideals". With high-quality products and high-quality services, we have won the trust of our customers and enabled the company to develop rapidly. Products include SDA-22C300T, NKA series safety valve, 23J-14H three-way stop valve for freezing, Q11F-64R ball valve, 304 internal and external wire interface. It is a professional overpressure protection device for refrigerator, condenser, evaporator and compressor. It has won the trust and respect of customers in domestic and international markets, and its products are all over the country. In the current fierce market competition, the company has been pursuing the tenet of "quality assurance, customer first, contract observance, and keeping promises". On the basis of implementing comprehensive quality management, with sophisticated process equipment, advanced and reasonable design, and specialization The production, appearance and internal quality philosophy and user-oriented service consciousness provide you with high-quality and continuously improved products and excellent services.

Dongzi Valve wholeheartedly welcomes domestic and foreign merchants, users and friends from all walks of life to come to investigate and order, and is willing to go hand in hand with you on the road of success and create brilliant.