1.)Material:Q235 2.)Surface:Zinc Plate 3.)Standard:BS1139, EN74 ... South America,Australia,and Midle East,ect.SpecificationsItalian Type Forged Scaffolding Double Coupler1.)Material:Q2352.)Size:48.3*48.3mm3.)Standard: ... ,Cuplock,Haki,Kwikstage),Scaffolding Couplers (German type,American type,British type,Korean type,Indian type,Australian type,Mideast type),Shoring prop,Formwork and its accessories. ...