Optical Mark Reader( OMR Scanner) is a high-tech data input device . NANHAO OMR can be widely used in education examinations, signing up, subject choice, data statistics and evaluation in fields such....
we supply OMR scanner and Interactive Whiteboard if you have any question please contact with me.
our factory has produced ZCNQ-100 8 slit remover which is designed as dual in-line vortex-flow machine and the combined detailed beeline vibrating screen. Through adjusting the underflow of....
Our company is an industrial organization specially manufacture petroleum solid control circulating system helicoid hydraulic motor pump accessories and other oil field tools.We supply mud....