... nail Material:45#,50#,55# Length:1"--7" zinc plated and black smooth,groove,bamboo shank CONCRETE NAILRaw materialC1045 , C1050 , C1055 ... (electro galvanized & hot dipped galvanized) &blackPacking1kg/carton,5kg/carton,10kg/carton,20kg/carton,25kg/carton100pc/box,200pc/box,500pc/box and so on Galvanized concrete nail, cement steel nail ...