(1)1965: Zhongyuan Electrical Measuring Instruments Factory was established to develop and manufacture aviation instrument components (2)1975: Established the only producing-line of strain gage in the national defense industry (3)1984: The first pressure transducer of high temperature(up to 350C)ment (for Plastic Extruder) in China (4)1986: Strain gage technology tranfer from USA (5)1990: The first stran gage with creep compensation in China (6)1994: Developed the muti-function,fully encapsulated strain gage,became the industry leader (7)1995: Member of the Council of China Weighing Instruments Association (8)1996: ISO9001 Quality System Certificate (9)1997: First digital dynamic and static torque wrench and tester in China (10)1998: Mass production of multi-shear beam load cells (11)1999: Vice-Chairman of the Council of China Weighing Instruments Association. (12)2000: OIML R60 cerification and Explosion Proof Certificate. (13)2001: Internation strategic cooperation in transducer area realized, first rate technology and quality in the world attained. (14)2002: Established joint stock company,and became Zhonghang Electronic Measuring Instruments Co., LTD (15)2004: Appraised as High-Tech Enterprises by Shaanxi Province (16)2005: Three items of products gained OIML Certificates approved by PTB of German;Three series & 29 models passed the metrology type approval of Russia;RoHS directives have been implemented completely during the production of load cells and strain gages;Establishment of oversea subsidiaries ZEMIC USA (17)2006: Six items of products gained OIML Certificates approved by PTB in German;Establishment of oversea subsidiaries ZEMIC Europe;With a total area of 63,000 square meters, the second manufacturing site, which located in the Hanzhong High-Tech Development Zone, came into usage in this June (18)2007: Six items of products gained OMIL Certificates approved by PTB in German;Four items of products gained NTEP Certificates approved by NCWM in US (19)2008: 57 models of load cells gained FM Anti-explosion Certificates of US, and cFM Anti-explosion Certificates of Canada;58 models of load cells gained ATEX Anti-explosion Certificates of Europe