concertina razor barbed wire /blade wire material :hot dipped galvanized ,stainless steel BTO10,12,18,BTO22, 28,30.CBT60 65 concertina razor barbed wire /Blade wire ... :1. Material:1)Hot dip galvanized plate + hot dip galvanized steel wire2)Stainless steel plate + Gal. Steel wire or SS wire ... the quantity and material concertina razor barbed wire/blade wire