1.)Material:Q235Q255Q345 2.)Surface:HDG,Galvanized, painted 3.)Standard:ISO9001:2008, EN74 4.)Note:OEM Serviced Specifications1.)coupler weight:1.40kg2.)material:Q235,Q255,Q3453.)size:48.3mm4.)surface:HDG,Galvanized,painted,eletroplate5.)standard:EN74 Main BusinessItemGerman Type Scaffolding Drop Forged Double CouplerMaterialQ235Surface TreamentHDG,Galvanized,Painted,ElectroplateNet Weight 1.30-1 ...