Zhengsheng is the designated component supplier for China Railway Ministry and China National Marine Cooperation. It is also the main piston rings supplier for most of the high power diesel engine factories of China . Both production and marketing of the company rank the first in China , and the quality of products is of international advanced level.


     Ranked 158th among the 500 top machine industry enterprises
     Being awarded the State Second Grade Enterprise
     Being awarded the Highest Quality Award in the national competition         of piston ring quality
     Product quality regulations according to QS-9000 and ISO-9001