... light weight, low cost Standard: ASTM Shape: Z section Z steel purlin 1.Thickness:0.5mm to 3 ... Q345 3.Width: 80mm to 300mm 4.Material: Galvanized/prepaintZ steel purlin, C purlin and H beam are ... from high tensile galvanized steel.2) Despotic C&Z section steel, Z section steel is roll-formed from galvanized steel, specification ... , please contact us for more information Galvanized Z section Steel Purlin