Shanghai Changji Geological Instrument Co.,Ltd is established in 1998,the former is Shanghai Geological Instrument Factory under the Ministry of  the National Geology and Mineral Resource.

     Changji has four major series and more than 200 types products: more 140 types petroleum instruments,more 60 types highway instruments,each 10 types for laboratory instruments,Rotary viscosity instruments and geological instruments.Also we develop and produce more than 30 kinds of non-standard instruments according to the clients' special requirements each year.It depends on the complete category products,strong matching capacity and fast development ability,its products are not only widely used in China,but also sold and welcomed in 20 countries.

     The highway instrument three major index:penetrometer,ductility tester and softening point tester.Changji's products are with the advanced technical features and fit the ISO, ASTM, IP, GB and other international standards.Recent years,we develop smart instruments with the communication port to realize the remote control, transmitting test parameters and networking management of Laboratory equipments.    Changji pays more attentions to develop and invest in the technology innovation.So far,we have gotten the China National Invention Patent 1,the No. ZL 2005 1 0024291.9;Utility Model Patent 2,the No.ZL 2004 2 0023460.8 and ZL 2013 2 0365490.6.Other two national innovation patents and two ulility model patents are in the process of the official investigation.Changji's products become more and more stabilization and elegant after many years development and research.So selecting Changji,you choose the precipitation of time and satisfication.
 
III.Sample Room and Work Shop