... .5 4)Length:3 or 6 met Strut ChannelFeatures:1) Material: steel and stainless steel (SUS304, SUS316)2) Surface treatment: PLAIN, PG, ZP ... 62, 62 x 41,17x 28, 38 x 404)Thickness:1.2~2.5mm5)Packing: According to customers' requirements6)Other:Size ... (3m,5.8m,6m ),special length are available upon requests structural steel,unistrut channel