ABOUT BZD

1、Binzhou Zhengdao Mechanical Manufacturing Co., Ltd.(a.k.a. BZD) was founded in 2006. It is conveniently located in the City of Binzhou in Shandong Province, China, surrounded by a robust transportation and service network. 

2、Main products: wear-resisting piston ring carrier inserts, salt cores, and ring carrier inserts with cooling passages.

3、Founder and President, Mr. Su Daosheng, is a researcher who pioneered the field of wear-resistant piston ring carriers in China. He developed the country's first wear-resisting piston ring carrier insert in 1984. Today, his company leads the piston ring carrier inserts and salt core markets in both quality and technology. 

4、BZD has passed the following authentications: 

      - ISO14001 (2004) 
      - TS IATF16949 Quality Management system (2008)
      - Environment Management System (2012)
      - National Measurement Standard Examination (2012)
      - Certification of National Production Safety Standardization (2013)

5、BZD owns 31 national patents, including 6 invention patents and 25 new utility patents.

6、BZD's main customers at present are from China, the United States, Japan, Germany, India, Brazil, Russia, the Czech Republic, Malaysia, etc. They are:

      MAHLE (China): the supplier for Mercedes-Benz and other well-known automobiles in the world
      China VW Pistons: the supplier for Volkswagen
      KS (Japan): the supplier for Mazda in Japan
      ART (Japan): the supplier for Toyota 
      Korean Southeast Asia Piston (China): the supplier for Hyundai and Kia
      Piston Honda (Japan): the supplier for Honda in Japan and in the other parts of the world 
      Federal Mogul (Qingdao China):the supplier for BMW and Volvo 
      Honda Piston (China) :the supplier for Honda in China and other countries in the world

7、What sets BZD apart:  ① Customer satisfaction with BZD products and services are guaranteed, thanks to our comprehensive quality management system. We stand behind our products.  ② We offer competitive pricing for quality products to help our customers remain competitive. We focus on building long-term mutually beneficial relationship with our customers.


  • 2006Year

    a.k.a. BZD was founded in 2006. Main products: wear-resisting piston ring carrier inserts, salt cores, and ring carrier inserts with cooling passages.

  • 10+

    BZD's main customers at present are from China, the United States, Japan, Germany, India, Brazil, Russia, the Czech Republic, Malaysia, etc.

  • 34000+

    Plant Area (m2),It is conveniently located in the City of Binzhou in Shandong Province, China, surrounded by a robust transportation and service network.

  • 30+

    BZD owns 31 national patents, including 6 invention patents and 25 new utility patents.

OUR HISTORY

2006年1月

成立正道机械

Binzhou Zhengdao Mechanical Manufacturing Co., Ltd.(a.k.a. BZD) was founded in 2006.

2009年1月

开始正式生产耐磨镶圈和盐芯

开始正式生产耐磨镶圈和盐芯,董事长苏道胜是中国耐磨镶圈产品创始人

2009年12月

通过质量管理体系认证

通过ISO/TS16949质量管理体系认证

2012年7月

通过环境管理体系认证

通过ISO14001环境管理体系认证

2013年11月

通过国家级安全生产标准化考核

通过中国国家级安全生产标准化考核

2014年1月

获得部、省、市级单位奖励

科技部、省科技厅及滨州市科技局奖励正道公司110万元人名币用于新产品及新技术研发

2015年4月

开始生产喷嘴环

开始生产喷嘴环(用于涡轮增压器,不锈钢材质)。

Corporate Culture

  • Mission Statement

    We strive for: 1) 100% customer satisfaction 2) Material and emotional wellbeing of our employees 3) Betterment of society.

  • Corporate Philosophy

    Embrace one's conscience, walk the straight path.

  • Management Principle

    Singular steps traverse thousand kilometers; tiny streams feed the ocean.

  • Employee evaluation metrics

    dedication to company, being coachable, self-discipline and diligence, team spirit.

Marketing Network

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