... : smooth, grooved, spiral, twist Nail factory offer high quality concrete nails ,Ms Cathy tel:0086-159-53920529Shank diameter :1.2-5 ... galvanizedFeatures: level cap, head, rod / grooveUsage: Construction, walls with staplesPayment: T/T 30%deposit and 70%with L/C copy or mutual ... , 20-25kg/carton; bulk packing.Blacking concrete nail, Bluing concrete nails High quality concrete ...