Three gang moulds & three Gang Mould For Prisms Cement Steel 40mm Three Gang Cube Mould, for prisms 40 x 40 x 160mm is made of steel, base is made of cast iron. It is used for concrete hardened....
Cangzhou Oubeiruike Instrument Equipment Co Ltd in Cangzhou City, Hebei Province, east of Bohai, north of Beijing and Tianjin, and Shandong Peninsula and Liaodong Peninsula across the sea, is....
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.