211-5270, THK, THK SR20-400L(GK) Series, SR20-400L(GK), Linear Guide Rail 20mm width 400mm Length, Brand THK, Rail Width 20mm, Rail Length 400mm, Manufacturer Series SR20-400L(GK) THK SR20-400L(GK) Series, SR20-400L(GK), Linear Guide Rail 20mm width 400mm Length