... .Optional accessories (cantilever shelf ,cable management,wire manager, drawer flat YF-DK-2 Open Rack1. Assembling design, easy to fix , low ... , cantalever plate, drawing and pulling work platform,etc.3. 2 pc 19" frame, be welded by 2mm thickness steel,punched both ... , IEC297-2 ,DIN41491 , PART1 , DIN41494; PART7 ,GB/ T3047.2-92 YF-DK-2 Open Rack