... of components can pass through a variety of narrow channels.Ring lock system scaffold componentsNameModel No.SizeLedgerQHG-090900mmQHG-1201200mmQHG-1501500mmQHG- ... lock system scaffoldComponentTube, fastenerStandard, LedgerStandard, Leger, DiagonalForce styleFriction, ShearAxial loadReliabilityFree frame node, diversity, low reliabilityFixed size component, steady structure, high safety ...