A C-Purlin is a structural beam shaped like the letter “C” that is predominantly used in the construction industry. The 200x75x16mm specification refers to the dimensions of the C-Purlin, indicating a height of 200mm, a width of 75mm, and a thickness of 16mm. The term “galvanized” refers to the protective zinc coating applied to the steel to prevent rust and corrosion, making it ideal for various environmental conditions, especially in Singapore’s humid climate.