The USG Boral Knauf ST50 Gauge Galvanized Iron Perimeter Section - a high-quality product designed to meet your construction needs. This section is made from durable galvanized iron, ensuring long-lasting performance and resistance against corrosion. With a thickness of 0.50 mm and dimensions of 20 mm x 28 mm x 30 mm x 3660 mm, it offers excellent structural support for your projects.