Corrosion protection
ASTM A153 standard for hot dipped zinc coating
Helix Plate material
ASTM A36 hot rolled plate
Diameter
According to customers' demands
Length
According to customers' demands
Surface Treatment
Hot Dipped Galvanized, Painted or Powder Coated
Helices Thickness
3/8" and 1/2" inch
Bar Material
40Cr or 45# steel, round corner 5mm radius
Package
According to your demand