... 4) Adjust lenght:1.5-5m Adjust steel scaffolding couplerAdjust steel scaffolding coupler1.Style: Italian style2.Material: Q235 etc3 ... Surface treatment: galvanized ,painting ,stray8.Usage:cival construction and so onThe characteristics of the products are ... double layer scaffoldings, formwork supports, bracing column, material lifting device, self-lifting scaffolding, overhanging scaffolding etc.2.High ...