Standard cabinet structure is relatively simple, the main part of the basic framework includes several internal support systems, wiring systems, ventilation systems, 19in standard cabinet shape has a width, height and depth of the three conventional specify. Cabinet press load, material and components to manufacturing process can be divided into two basic sections and sheet structure. ① profile structure Cabinet: There are two steel sections cabinets and aluminum cabinets. Steel shaped timber cabinet consists of shaped seamless steel pipe for the column components. This cabinet stiffness and strength are good for heavy equipment. Made aluminum profiles consisting of aluminum enclosure has a certain stiffness and strength, for general or light equipment. This cabinet light weight, less processing, beautiful appearance, are widely used. ② sheet structure enclosure: the entire plate cabinet, which side is a single piece of steel bent shape. This cabinet stiffness and strength are good for heavy or general equipment. But not removable side panels, the assembly, maintenance inconvenient. Cabinet structure similar profiles bending plate Column cabinet, while the column by bending a steel plate. This cabinet has a certain stiffness and strength, for general equipment. Cabinet standard configuration 119 'Welded standard rack PDU power output of a 2 six 3 cover a set of four side doors and rear doors a set of 5 - 6 square hole mounting beam six four 7 8 50 sets of mounting bolts 9 Allen wrench and a 10 load-bearing casters 11 caster board four feet at the bottom (jack) four