Modular design, easily assemble and disassemble for delivery, low-cost. 19"frame, Various optional accessories ... 1.Standard: Comply with ANSI/EIA, RS- ... 310-D, IEC297-2, DIN41491, PART1, DIN41494, PART7, GB/T3047.2-92 standard 2. Modular ... slot, cable management, removable working panel, etc., ) 4.19"frame 1 pcs, 2 mm welded fold steel sheet, Two side figure ...