What is Pin-Hole Powder Coated Roller Shutter

Pin-Hole Powder Coated Roller Shutter is fabricated from first grade steel, with 3mm diameter holes perforated on the surface of the curtain covering approximately visibility of 60-70% interlocking lath. The edge of the slats are not perforated is to avoid weakening the interlocking joints. The holes and the perforations allow sufficient light and air to pass through and at the same time allow viewing of merchandise internally.