strut channel 1)Slotted or none slotted available 2) Length:3.00meters or 6.00 meters 3) Square package using steel strip strut channelA ... hole size is 9/16"*1-1/8" for slotted strut channelC: Come with the plastic protection capD: Galvanized thickness exceeding ... ,0602161,7801.271,6801,2608402401,6101.581,3601,020680 C Channel Slotted or none-slotted