1.Q235Q255Q345 2.Galvanized,HDG, Drop Forged 3.ISO9001:2008, EN74, BS1139, AS1576 4.48.3mm*48.3mm Drop Forged Putlog Scaffold CouplerMaterialQ235Q255Q345Surface TreatmentHDG, Galvanized, paintedCoupler SizeDia ... for develiying on time.2.Main product: Scaffolding System( Kwikstage, Cuplock, Ringlock, Haki); Scaffold Coupler( British Type, American Type, German Type, Italian ...