The material of cabinet is steel and with red powder coating!
The welding is very heavyintensity and beautifully.

1.4U rackmount chassis
2.Max 11x 3.5" Disk Drives
3.Shock-resistant disk drive bay
4.8.4" TFT LCD screen

4U Height 19" Rackmount Flat Door Chassis with 8.4"TFT LCD
8x 3.5" Disk Drive Bay and 2x 5.25" Disk Drive Bay
Front 8.4" TFT LCD screen(Optional touch screen)
There cooling fan designed for optimizing the system's airflow
Front LED indicator for PWR and HDD
Lockable Front Doors for Protecting the Running System
AT/ATX Back Window optional
Special hold-down clamp with flexible adjust

much detail about the box: