surface treatment:HDG or original ASTM Standard Guy Wire 1x7 /1x19 /1x37 ASTM A475 /ASTM B498 Guy Wire stay wire earth wire surface ... treatment:HDG or original Guy Wirestay wireearth wire Stay Wire Stee CableGuy Wire and Messanger ... , Extra High Strength GradeCan be widely used in messenger wire, guy wire, core wire or strength member, earth wire/ground wire ...