cold-formed light-gauge steel members include pre-drilled C-section and I-section steel, commonly made of low-carbon alloy with

cold-formed light-gauge steel members include pre-drilled C-section and I-section steel, commonly made of low-carbon alloy with yield strength of 345MPA, and zinc coating of 275g/m2. It features high yield strength and great anti-corrosion performance and is commonly used for roof purlin and walling support, with typical column spacing within 9m.