Zhengzhou City ZD Valve Co.,Ltd

Zhengzhou City ZhengDie Valve Co., Ltd (ZD) is a science and technology innovation enterprise, hi-tech enterprise in Henan Province, and a specialized manufacturer that researches and manufactures middle and low pressure butterfl y valve and special valves. ZD is member of China Water Association, China Valve Association and China Quality Association. And is also National Patent Demonstration Enterprise. ZD has been approved by ISO 9001 Quality System Authentication in 1997, and passed national ����grade security registration. Now we have DNVISO 9001 Certificate, CE Certificate and API Certificate. The ��D��Brand products have been awarded many national patents, in which the metal seated butterfl y valve is awarded the Henan famous brand products and recommended as ��ine Goods��by China Water Association and China National Petrochemical Corporation. With the rich technical and engineering team, fi ne machining tools, and testing equipments, large input in technology innovation prompts ZD��products improved constantly. Strict quality control system ensures the high quality products that make ZD keep leading in the Valve industry of China.