n modern construction, scaffolding is indispensable for ensuring efficiency, safety, and accessibility in building projects of all scales. Among the many components that make up scaffolding systems, couplers play a central role. These small but vital connectors determine how scaffold tubes join, lock, and bear loads. From the perspective of procurement officers and engineers, the application of scaffolding couplers is a subject that blends technical reliability with cost-effectiveness, influencing both purchasing decisions and on-site performance.Engineers'Perspective: Technical Importance of CouplersFor engineers, scaffolding couplers are not just accessories but structural linchpins. Their design, material, and manufacturing quality directly affect stability and safety.Right-angle couplers: Essential for joining two tubes at 90 degrees, commonly used for building load-bearing scaffold frames.