Standard: It is produced compatible with IEC297-2,ANSI/EIA RS-310-D,GB/T3047.2-92 standards. Material: High-quality cold roll steel Construction: Full assembly and knockdown construction, and seamless bayonet mounting Surface composition: 1. Powder coated to against rust, oxidization, scratches, lacquer peeling, strong acid and alkali erosion 2. Degree of protection: IP20 Features: 1. High quality and fine workmanship 2. It has a firm structure and can bear large weight .Load Carrying capacity:60KG 3. Front door with lock, plate work and glass door are available. 4. Both top and bottom has lacunose holes for cable come in and out 5.Easy operation and maintaining at the back. 6.120mm fan optional 7.Turning angle of front door is above 180 degrees 8.Turning angle of rear door is above 180 degrees.