タイトルまたは説明

C Steel using high strength steel after the cold bending stick pressure molding the wall thickness is well-proportioned the size is adjustable and it has high compressive strength although light but is very accord with the mechanical characteristics of roof purlin that steel can make the mechanical performance into play fully use this can reduce weight and the dosage of engineering building roof so it's called economic efficient steel C purlin used with pressed metal is the best choice in the light steel construction.