... ANSI/EIA , RS-310-D ,IEC297-2 , DIN41491, PART1, DIN41494, PART7, GB/T3047.2-92 standard .2) Modular design, easily assemble and disassemble ... , cable management, removable working panel, etc., ) 4) 19"frame 2 pcs, 2 mm welded fold steel sheet, Two side figure punching . YF ...