it is a fully automatic microtome ,It has two models for advance system of specimen clamp: automatic model and manual model. 2. Main technical parameter of Automatic microtome YD-355AT1Two model for section : Manual and automatic, the user can switch arbitrarily.2Four speed of section : 50mm/s100mm/s140mm/s180mm/s3Switch arbitrarily between section and trimming .4Alarm system for horizontal and ...