
Shandong Zhonghui Instrument Co., Ltd. It was established in 1999 and is located in the National High-tech Industrial Development Zone of Zibo City, Shandong Province. The company is recognized as a Shandong Provincial High-tech Enterprise, a Shandong Provincial Patent Star Enterprise, and a Shandong Provincial Hidden Champion Enterprise. The company specializes in the research, development, manufacturing, and sales of testing and analytical instruments for transformer oil, petroleum products, and ...