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HomeAbout Us Progress

Progress

  • 1983
    Jiangbei Tangtou Valve Processing Factory was established. The products have been processed mainly. The founding employees are only the factory director Lin Jianzhong and the younger brother Lin Jianguo.


  • 1992
    The Yongjia County Zhengmao Stainless Steel Valve Factory was established. Since then, the “Zhengmao” brand has been officially used, and the company has moved away from the original plus workshop mode to its own production and sales model.


  • 1997
    The standard brick and wood structure factory building in Tangtou Industrial Zone, Yubei Town was completed and the production conditions were improved.


  • 2002
    Zhejiang Zhengmao Valve Co., Ltd. was established, and its production range has expanded from the original single professional stainless steel valve to carbon steel, bismuth molybdenum steel and special steel.


  • 2003
    Obtained the ISO9001 quality system certification, and the company has moved to the path of modern management and standardized production.


  • 2004
    Shanghai Zhengmao Valve Co., Ltd. was established and obtained import and export licenses. Valve products began to be sold all over the world.


  • 2005
    It has obtained CE safety certification and API American Petroleum Institute certification, and its products have been sold to countries such as Europe and America.


  • 2006
    The 20,000-square-meter new plant in Wuxing Industrial Zone, Yubei Town, Wenzhou City was completed and put into operation. The corporate headquarters also moved to the plant area, and the production capacity of the company has advanced by leaps and bounds.


  • 2007
    The foundry branch was established, the company's castings began to be self-sufficient, and the delivery time and quality of the castings were guaranteed.


  • 2009
    Through the investment promotion of the People's Government of Lishui City, Zhengmao Valve Li Moisture Company was established. In the same year, the construction of a new 50-mu plant in Lishui Industrial Zone was started.


  • 2010
    Upgraded to a non-regional company, renamed Zhengmao Valve Co., Ltd.


  • 2011
    Won the national high-tech enterprises, Wenzhou city science and technology enterprises. The strength of enterprise R&D has been recognized by the Science and Technology Department and the government.


  • 2012
    The company's plant is completed and put into production, mainly producing export American standard valve products.


  • 2013
    The bridge under the new casting plant was completed, the foundry branch moved from Qibei Town to Qiaoxia Town, and the production line was expanded to three intermediate frequency furnace production lines. It was jointly awarded by Zhejiang Propaganda Department and Zhejiang Administration for Industry and Commerce as “Zhejiang Honest Private Enterprise”. honor.


  • 2014
    Honored by Zhejiang Administration for Industry and Commerce, “Zhejiang Province Abiding by Contract and Credit AAA”


  • 2015
    Obtained the highest A1 production qualification certificate issued by the AQSIQ for special equipment production license (TS certification).


  • 2017
    “Zhengmao” brand trademark was awarded the well-known trademark of Wenzhou City and the title of Wenzhou Famous Brand.


  • 2018
    Obtained ISO14001 Environmental Management System Certification and ISO18001 Occupational Health Management Certification. The new plant area of Tangtou Industrial Zone was completed and put into production, and the production capacity was further expanded.


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