About Us


Company Profile

Rizhao Zhengda Sanyuan Rubber CO.,LTD.,founded in June 2004, is located in the Industrial Park of the Ma Qi River East Village, Zhonglou Town, Lanshan District, Rizhao City, Shandong Province, covering an area of more than 15 thousand square meters. We not only have lots of office buildings, but also many quality inspection centers, production workshops, warehouses and so on. We have a mature market channels and a strong financial strength. We are a new high-tech enterprise which is skilled in wide variety of sealing rubber products with the fixed assets of 16 million yuan.
Our company is a new high-tech enterprise especially skilled in wide variety of sealing rubber gaskets, rubber o rings and other rubber products which materials include Silicone、EPDM、FKM、NBR, etc. We also produce high quality fitness equipment, barbell weight plates, PE microporous products, auto parts, rubber strip hose products, butterfly valve, flow aid air disc and so on. The products are mainly applied in auto spare parts, household appliances, solar water heater, grooved drain-pipe, fire main, hydraulic machinery, chemical engineering, electronic engineering, pharmaceutical industry and so on. The products are export-oriented with America、Canada、India and South Korea as its main exporters.

Enterprise Goal

To be an industry expert
To develop high-quality products
To create a first-class and competitive enterprise in the industry

Competitive Strategy

Make best use of the advantages
Optimize innovation
Leading the market
Create the future together

Corporate Responsibility

To Protect the environment
To Create profits
To care for employee
To return society

Enterprise Tenet

With high quality products to return customers
With the best price to win the heart of clients
With superior service to win the trust and support of our customers
Let our old clients introduce new ones

Enterprise Spirit

Good faith management
Conduct honorably in commercial transactions
Harmonious development
Mutual benefit business opportunities

In recent years, our company have gathered outstanding technical personnel in the industry and introduced advanced management experience at home and abroad. What’s more, we have a mature market channels and a strong financial strength. We also have signed long-term industry-university-research agreements with many research institutes and universities, including Northwest Rubber & Plastic Research & Design Institute Co.,LTD., Qingdao University of Science and Technology and so on. With the development of the company, we continue to expand the R&D team and introduce talents constantly, then a professional team has been set up. At the same time, the advanced production equipment has been putting into operation. Besides,there are more than twenty professional and technical persons who are specialized in polymer material and engineering, high polymer chemistry and other multiple fields, with 66 professional production equipments and 11 testing equipments. In addition, the products have passed the ISO9001:2015 certification.
Well-deserved reputation and premium products makes us occupy a position in the market. We commit to provide high-quality products to our customers. With market-oriented and consumer-centered mindset, we strive to become a competitive enterprise in rubber industry by constantly innovation, optimizing the management system and developing high-tech products continuously.