... lift up and down smoothly and noiselessly, ophthalmic unit ophthalmic unit Size of combined table 1,100Lx 1,200W x 2,100Hmm size ... of table-board 1,050 x 500 x 30mm voltage ... smoothly and noiselessly,human-oriented design .Power plug on the table surface for slit lamp and kerotometer.90 degree rotation:can ...