scaffolding couplers scaffolding couplersmaterial:carbon steel Q235weight:550g,580g,650gsurface treatment:yellow/white zinc platedpacking:30pcs/carton.36carton/pallet,33pallets/20"container,also can packing as customers' requestWe are a professional fasteners manufacturer and exporter in China, We started our export business when we were established in 2002. Our hardware items include Nuts, Nails ...