Yantai Shelves maintenance (1) includes ground rail and the rail track. (2) the frame body including columns, siding, shelves, separate bar, dust board. Column: erect pillars supporting the entire frame body; peg board: placed between the shelf and the shelf, play a supportive role in fixed; shelf: store archives flat plate; separator bar: used to separate the data stored in the middle of a double-sided prevent confusion; dustplate: on top of the frame body, mainly used dust. (3) transmission means comprises: a chain, gears, hand plate, bearings, rollers, locking. Spindle and bearing diameter φ20mm, 45 # steel Wuchang quality manganese steel materials GB3882-87, outside Z390504 with spherical bearings, short-axis drive socket connection, a reliable center straightness, smooth frame body movement, light, natural . (4) Chassis: mainly used for base support frame body. Because the impact generated when the rack to prevent damage intensive cabinet together, but also can reduce the impact of the opening and closing of the frame body produces noise, play bumper, dust, moisture, noise, prevention of action: (5) seal. (6) panels: inner panel comprising, outer panel, and door panels. (7) Roof: Top-intensive cabinet body, top each with a dust bin cabinet device prevents dirt falling into the bottom frame of the cabinet countertops and anti-down devices: Each group activities sided anti-down devices are configured Roof . (8) catalog card: located on the side of the cabinet, for placing classified information card file. (9) anti-down device: placed on top of the rail, used to hold intensive counter, prevent intensive counter dumping.