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About Tonzo

About Tonzo

  • Introduction
  • Culture
  • Events
  • History
  • Honors
  • Social Responsibilities


Zhejiang Tongzheng Pipe Technology Co.,Ltd.

Zhejiang Tongzheng Pipe Technology Co., Ltd. takes a favorable geographical position. It is located in the famous historical city---Shaoxing, which is a city by the estuary of the Qiantang River, and in the economic core area of Yangtze River Delta. The company was formerly known as Shaoxing Tongzheng plastic pipe Co., Ltd., which was built in July, 2001, covering an area of 45000 square meters, with the construction area of 60000 square meters, and the total assets of nearly 200 million Yuan. The company has mainly produced and managed all kinds of plastic pipe products, like PVC-U drainage pipe series, PVC-U electrical conduits series, PP-R pipe series for cold&hot water supply, PE pipe series for water supply, PPR-Al stable composite pipes, PE-RT pipe system for low temperature under-floor heating, PVC-U&PVC-C cable sheath pipe for high and low voltage underground cables, PE pipe for protective communication cable, univertical pipes, etc. Plastic pipes are called “the pulse of city”, undertaking the transporting of liquid, including the running water, and gas for industrial and civil use, are closely linked to people’s daily life.

Zhejiang Tongzheng Pipe Technology Co.,Ltd.

Since it was founded, Tongzheng, with its high-quality products and leading service, has become a star of this field. It has realized a great-leap-forward development, kept an annual growth of 30%, and completed a large number of quality sample projects, like the World Top Span-- Hangzhou Bay Sea-Crossing Bridge. With its sales network all over the world, Tongzheng has been granted titles of “Zhejiang Name Brand”, “Zhejiang Famous Trademark”, “National High-tech Enterprise”, etc. As the urbanization and construction of infrastructural facilities speed up, Tongzheng will certainly embrace a prosperous future.

As it is said that trees grow high with solid roots, Tongzheng has always taken the technological innovation as one of the basic development strategies and endeavored to maintain its competitive advantages through the construction of new research institutes, the supply of advanced testing equipments and the cultivation of technical talents. Meanwhile, Tongzheng has also actively cooperated with related research institutes, colleges and universities, and developed kinds of new products with special properties, such as “top rainwater drainage system”, “univertical pipeline system”, etc. It has acquired 3 national invention patents and 15 utility model patents.

Tongzheng will hold on its business philosophy of “Solid, Efficient, Pragmatic and Innovative”. At its developing time, Tongzheng has still insisted to strengthen its management, improve its governance structure and actively explore sustainable operating methods. Members in Tongzheng company share the idea that “only when we have the same goal, can we survive; only when we keep good morality, can we prosper”. Tongzheng family believes in “Happy Business, Business Happy”. It’s our pleasure to bring everyone a comfortable, healthy and safe environment and a better life as well.

  • 45000

    floor area 45000m²

  • 60000

    covered area 60000m²

  • 2+

    Total assets of nearly 200 million yuan

  • 30+

    Maintain an average annual growth rate of 30%



  • In July, 2001, Shaoxing Tongzheng plastic pipe Co., Ltd. was founded in Longhushan, Potang, Shaoxing.


  • 2006

    In 2006, Tongzheng moved to Fangquan village, Jianhu town, Shaoxing city.

    In 2006, Tongzheng got through the ISO9001 quality management system certification.

    In 2007, Tongzheng was granted with the title of “Integrity private enterprise”.

  • In 2007, Tongzheng was granted with the title of “Integrity private enterprise”.


  • 2009

    In 2009, Tongzheng was granted with the title of “Zhejiang Famous Trademark”.

  • In 2010, Tongzheng was granted with the title of “Zhejiang Name Brand”.


  • 2011

    In July, 2011, Tongzheng held its 10th anniversary of factory construction.

  • Tonzo PP-R Younai pipeline system products come onto market.

    In2012, Tongzheng was granted with the title of “Top 10 Scientific and Technological Innovation-oriented Enterprises”.

    In March 30th, 2012, Tongzheng acquired the title of “National High-tech Enterprise”.


  • 2013

    In August, 2013, Tongzheng moved to Pingshui Town, Shaoxing city, and changed its name as “Zhejiang Tongzheng Pipe Technology Co., Ltd.”

  • In June 18th, 2015, Tongzheng new building put into use.


  • 2016

    In July,2016, Tongzheng held its 15th anniversary of factory construction.

  • 2001
  • 2006
  • 2007
  • 2009
  • 2010
  • 2011
  • 2012
  • 2013
  • 2015
  • 2016