There are two types of 150 series aluminum alloy columns, 'side columns' and 'neutral columns'. The side columns have a long side of 147mm and a short side of 45mm; the middle column has a long side of 147mm and a short side of 70mm. There are three types of aluminum alloy beams in the Xingfa 110 series curtain wall, one is 60*41.5, and two are 60*65. There is not much difference in the shape of the beams and columns. I don't know about other brands.