GSW Steel Wire Rope Certificate Our galvanized steel & strand products have excellent mechanical properties. The vertical hot-dip galvanized technology ensures coating thickness. We employ the most experienced, talented, licensed engineers in the industry to design solutions for your application. 20 production lines for zinc coating and 34 lines for stranding wire ,with Independent test and research center, plus manufacturing facilities in Germany, Poland and Japan, give our customers unparalleled support and global reach. Galvanized steel strand is used for prestressed concrete structure reinforced, such as large-span bridges on railway and highway, overhead crane beam, rock-soil anchoring Project, multi- storey industrial buildings, stadiums, coal mines and etc. Available size and type (1)Galvanized steel :Φ1.44-4.77 mm (2)Galvanized strand:3 wires,4wires,5wires,7wires,19wires,37wires