... equipment case, testing equipment case, communication, and computer system.2. Casted front frame designed; reliable and robust design.3. ... and left&right side plate: (1) 1.5 or 2.0mm aluminum board. (2) 2 kind of assemble methods. (3) Plate board ... .5. Color schemes: green, medium grey, sapphire blue, light grey,(cover), silver grey (metal color). Series C2 19 inch Aluminum Electronic Enclosures