Storage Steel Mobile Filing Cabinet: 1.Structure:Double-column structure. 2.Frame bodymaterial:High quality cold rolling steel 3. Layer: Each layer is composed of a block shelf or two,and the space between each layer is adjustable. 4.Track material:High quality cold-drawn square steel and hot rolled steel. 5.Type of track: Ground-type, bevel type and flush type. 6.Handle:Crank handleand andlong-handed handle. 7.Range of application:Densely store large drawing, file, construction drawing...and more. 8.Others:The specifications of products could be changed according to the specific needs of clients. Outside Size(mm) Lengh×Depth×Height (one unit)Payload capability (kg)Layer Number (per section)Uint/SectionL1100*D550*H23508061/1L2000*D550*H23508061/2L2900*D550*H23508061/3L3800*D550*H23508061/4Note: 1) Outside door dimensions(mm)2121*430*19(one pair of doors are made up of a left door and a right one).2) Layer: It is adjustable in 36mm each layer.