(1) 1965: Zhongyuan Electrical Measuring Instruments Factory was established.

(2) 1984: Made the transducer for the first time in China.

(3) 1986: Strain gage technology transferred from America.

(4) 1994: Strain gage production and was the industry leader in development.

(5) 1996: ISO9001 Quality System Certificate.

(6) 1997: Inaugurated the first digital static and dynamic torque test in China.

(7) 1998: Shear beam load began to mass production of cells.

(8) 2000: OIML received R60 and Explosion Proof Certificates.

(9) 2005: Three series products were given OIML certificate by German PTB. Three series product and 29 model were granted Russia metrology type approval.

(10) 2006: In Hanzhong High-Tech Development Zone, established second production facility with a total area of 63000 square meters.

(11) 2008: 57 model was awarded FM Anti-explosion certificate by Europe.

(12) 2011 : ZEMIC acquires 45% of Yaohua.

(13) 2012: ZEMIC, Shijiazhuang Huayan Traffic Technology Co., Ltd. acquired 70% of the company.