... 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3,38 ... Pitch (center to center):12.5,15,25,30,30.16,32.5, 34,40,41.25,45,50,60,60.32,80 ... , Scrolls and Panels in material of low carbon steel class 25-35 which can be easily welded by the steel electrode ...