Window beam (hot rolling window frame， window section steel, rolling steel sash, sash bar)
Model: 25, 35 series (F2, F4, F7, FX7, F4B, T2, T6, T13, F7D, EZ-7 mild steel window section, hot rolled window section, steel window frame, steel window profile)
section area and theoretical weight: as followings
Standard: GB/T 2597-1994
Grade: WFS335 / CK335
1. Model of the window beam is represented by 4 arabic numerals. The first and secondary digits are representing the height (mm), referred to as it’s series; the third and forth digits are representing the section shape, referred to as type.; the letter of mantissa (a, b) means different sequence of width.
2. the window beam could be 3-8m. which according to customer’s requirement.