... Swivel Coupler EN74 German Type Scaffolding Coupler,Drop Forged Steel, Electro-Galvanized Mainly ProductsDouble coupler,butt joint couler,swivel coupler,straight coupler,girder coupler,sleeve coupler,grav ... ForgedStandardEN74, BS1139, AS1576Coupler Packingplastic weave bag then palletized in the steel pallet Anti-slip Swivel Coupler EN74 German Type Scaffolding Coupler,Drop Forged ...