Novinky, Poradenstvo Kalibrácia fľaštičky v optickej hladine Publikoval nivel 31. júla 2022 Zapnuté 26. januára 2021 All measuring equipment should be periodically checked and calibrated. In today’s episode, we would like to present the calibration of a vial in an optical level. You can calibrate by yourself or visit our regional offices.Watch the movie (with english subtitles)