Top cup Scaffolding top cup Cast iron top cup Material:Ductile Iron Surface: Self colour Name:Top CupScaffolding Top CupCasted Iron Top CupDuctile Iron Top CupMaterial: Ductile ... strength and good elongation.Afte hammer hitting testing,the top cup have no any cracks and broken.Surface: Self ... , Hex nut, Swivel wing nut, Climbing cone, Scaffold top cup, Prop nut, Prop sleeve, Base jack nut, Scaffold ...