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Founded in 2006

To the conscience,take the right path.

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...

RECOMMENDED PRODUCTS

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

Aluminum piston wear-resistant ring >

Aluminum piston wear-resistant ring (Support Type) >

Aluminum piston salt core >

Special-shaped salt core >

Ductile iron piston >

High-silicon molybdenum ductile iron >

More products

ADVANTAGE

What makes BZD outstanding

① With a robust quality management system in place, we can consistently and stably guarantee product quality.

②We emphasize the reduction of product costs and commits to providing our customers with competitively priced and attractive products. This commitment assists our customers in minimizing costs, establishing a long-term mutually beneficial cooperation·

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)

Our main partners

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)、China VW Pistons、KS (Japan)、ART (Japan) Korean Southeast Asia Piston (China)、Piston Honda (Japan)、Federal Mogul （Qingdao China）、 Honda Piston (China) .

Advanced Production and Testing Equipment

BZD boasts 51 national patents, including 8 invention patents and 43 utility model patents. We possess cutting-edge testing and production equipment, ensuring that each product leaving the factory complies with industry standards.

NEWS

Follow BZD to get our latest information

NEWS ? 2020-10-13

In September 2020, Mr. Su Daosheng, Chairman of the company, was honored as an o

In September 2020, Mr. Su Daosheng, Chairman of the company, was honored as an outstanding entrepreneur by Binzhou City.

NEWS ? 2022-09-12

BZD project was evaluated as the key project of Binzhou City.

In March 2020, the project of "annual output of 10 million variable section turbocharger nozzle Ring" was awarded as a key project in Binzhou in 2020.

NEWS ? 2020-11-09

In April 2020, We entered the "White List" of Emerging Industries.