MS Rolling Shutter

The situations where a certain amount of ventilation combined with safety is required rolling shutter-cum-grill may be provided in which the rolling shutter may have a rolling grill portion either at the top ,bottom or at both places. In addition, the rolling grill portion may also be provided in the middle of the shutter. The total height of the grill portion in all the segments of rolling shutter-cum-grill should not exceed 1.0 m and the height of the grill portion in any individual segment shall not be more than 0.5 mm.