perforated hdg steel strut channel size 1.Professional manufacturer & exporter 2.CCC,CE,NEMA,UL, ... Provides;High quality & reasonable Price, no need welding and punching, can use repeatedly, wide usage range, flexible for installation. 1. Standard ... Standard length: 2440mm, 3000mm, 5800mm, 6000mm 3. Standard size: 41*21, 41*25, 41*41,41*62,41*72,41*82Other sizes be produced according to customer’s ...