If the length with the steel grating is lower than one m or There exists close edge to the steel grating, the burden would increase. Whenever we wrap Using the bearing bar as well as length on the steel grating is over one m, we use the subsequent computational method https://jual-grating-steel49360.mybjjblog.com/the-2-minute-rule-for-jual-grating-galvanis-43105914