... , AS1576 4.48.3mm*48.3mm Drop Forged Swivel Scaffold CouplerItemDrop Forged Swivel Scaffold CouplerMaterialQ235Q255Q345Surface TreamentHDG, galavnized, paintedNet Weight1 ... on time.2.Main product: Scaffolding System( Kwikstage, Cuplock, Ringlock, Haki); Scaffold Coupler( British Type, American Type, German Type, Italian Type ... Provide good service for everyone.Images Drop Forged Swivel Scaffold Coupler