Dimensions: 300*270*35*6.0 (to be used in conjunction with Φ140 column)
Height: 270
Width: 300
Wall thickness: The minimum wall thickness of the black member is not less than 6.15-6.25
Aperture: 20*24
Galvanized layer: Average 85μm, with a minimum of 85μm at low points (low points account for no more than 2%)
