1. Quality SPCC cold rolled steel sheet of 1.2-2.5mm thickness. 2. Frame of the cabinet is made by steel in which designed with the structure of being bent for nine times, small cross-section. So that it is much more firm and stable, able to carry a big load, it is provided by Guangzhou Jujin Industrial Technology Co. , Ltd and it meets the National Standard 19''. Devices are adjustable vertically by the distance of 25mm according to the international practice (1U = 44.45mm). Our brand is GDHW which is representative of high quality. It's very flexible to configuration. 3. Front and rear perforated door designed with holes of high density (rear door can be single or double door). The rate of ventilation is up to 78% or more. It forms a delightful appearance. 4. Creative and specialized design of top cover for distributing cables, capability for distribution of high density. Our website is gzjujin.net. It's s concerned to be used in all kinds of environment. 5. high-duty casters and levelling feet at the bottom ensuring the loading capacity up to 1050KG. 6. There are interior trays of the cabinet which can be adjusted forward and backward, up and down. (sliding trays are optional), and four adjustable vertical rails. 7. customizable for different specifications and interior of cabinet 8. Mainly apply to management for high-performance professional IT devices, telecommunications, security system, major IDC data centres.