An Hui Shang Zhong piston ring Co.,ltd was founded in 1994.Factory moved from Zhejiang province to Anhui province in 2007,factory covers an area of 35000 square meters;the construction area has 25000 square meters.Currently,there are more than 200 employees in our company.in which technicians occupy more than 20%.

Our company is a professional factory in producing piston rings. There are more than 6000 various of categories which can be used in the majority of gasoline and diesel engines in the world.

Our products have been exported all over the world and very popular in the whole piston ring market. Besides, we have been awarded TS 16949 and ISO 9002 certificates, and the Brazil INMETRO certification.

In recent years, we have introduced professional piston ring facilities, which include inside & outside Profile Modeling Lathe, High Precision Double-side Grinder, Automatic Beveling Machine, Opening Trimming Machine, Japanese-made Digital Moulding Grinder, Swiss-made (M-1100C) Plasma Molybdenum Machine, etc. Besides, we also have set up a production line of casting which can produce rough rings, 5 production lines for producing oil rings which are sets of 3 pieces, and 2 production lines for steel rings. In addition, we also have a series of surface treatment, such as heating treatment, nitrogen treatment, phosphate, chrome plating, tin plating and molybdenum-coated. Moreover, we have our own professional chemical lab and quality testing center.

1. Our general manager Mr. Lin Shang zhong with our management team, most of our team members work in shang zhong more than ten years.

2. Our vice-president Mr.LIN, graduated from the University of HULL, UK. He worked in Anhui ShangZhong piston ring Co.,ltd after graduated. Every year Mr. LIN attends the automobile exhibitions all over the world to develop new markets and visit our customers. Now Mr. Lin is leading our sales team to get more achievements

Since Shang Zhong enterprise was set up, we have been following our own operation principles which include keeping people oriented, exploring and upgrading, pursuing remarkable achievement, and keeping honest.