... AS1576 4.48.3mm*48.3mm Swivel Coupler Galvanized for ScaffoldingMaterialQ235Q255Q345Surface TreatmentHDG,Galvanized, ... ForgedCertificationISO9001:2008StandardEN74, BS1139, AS1576FeatureSkidproof, Antirust, High Breaking StrengthSupply Ability500Tons/MonthPayment TermsT/T, ... Kwikstage, Cuplock, Ringlock, Haki); Scaffold Coupler( British Type, American Type, German Type, Italian Type, Australian ...