... ( material roofing sheet), corrugated iron sheet, sandwich panel, C/Z section steel sincere 1993 with a great reputation. Has our own ... GI, PPGI, corrugated iron sheet, sandwich panel, C/Z section steel production line. As regard to the pattern or style ... panel thickness:50,75,100,150,200mmC/Z section steel Matching use of C/Z section steel purling and the pre-painted steel ...