It is made from high grade Low Carbon steel iron wire, heavy zinc coated wire, PVC coated wire though twisting and braiding by machine. as well as galfan coated units. Galfan is a high performance galvanising process using a zinc/aluminium/mischmetal alloy coating. This offers significantly greater protection than traditional zinc galvanizing. Where the product is exposed to water courses or a saline environment, we strongly recommends a polymer coated galvanized unit for improved design life.