在工业厂房建设上用的窗框上,有时采用一面凸及两面凸的型钢,其产品形状及规格见图1,尺寸及允许偏差见表1。在工业J‘房建段‘卜用的窗框.卜,有时采用一而凸及雨而凸的型洞,共产品形肤及规格见图l,尺寸及允前偏差见尖1。二创配凸的大,当不均匀变形时,断面很)钧均余肠容易从压下最救大处流向压下量救小的地方,电能泊耗一也比校少 In the construction of industrial plants on the use of window frames, and sometimes use a convex and biconvex steel, the product shape and specifications shown in Figure 1, the size and allowable deviation in Table 1. In the industrial building block J Bu Bu used window frame Bu Bu, sometimes convex and rain and convex type of hole, a total of skin and product specifications shown in Figure l, size and allowance to see the previous tip 1 sharp. Two create a convex with large, when the uneven deformation, the cross section is very) Jun average is easy to squeeze the pressure from the largest department to reduce the amount of pressure to save the small place, the energy consumption of a less than school