... coating. 2.Quality guarantee:10 years. Machanical steel mobile file cabinet 1.Description: wheel handle, diameter, 210mm; 12 teeth gear, ... 16 teeth gear, 20 teeth gear; tension controller; industrial wheel castor, diameter, 127mm; anti-tilting device; rails are made of ... power coating 2.Optional accessories: multi-purpose shelf, plastic drawer cabinet, pull-out desk top, hanging rod, pull-out frame, ...