... Channel Finished: PLAIN, PG, ZP, HDG Size: 41 x 41, 41 x 21,41 x 25, 41 x 62 Thickness:1.2~2.5 Pre ... , ZP, HDG, POWDER COATING3) Size: 41 x 41, 41 x 21,41 x 25, 41 x 62, 62 x 41,17x 28, 38 x 404)Thickness ... length are available upon requestsQuick DetailsStandard: ASTM, DIN, GBDimensions: 41*41mm, 41*21mm, 41*62mmGrade: Carbon steel, SS304Brand Name: ChuandaoShape: C ChannelPerforate or ...