If the length on the steel grating is a lot less than one m or There's stop edge for the steel grating, the burden would boost. When we wrap Using the bearing bar as well as the duration with the steel grating is much more than 1 m, we use https://jual-grating-surabaya30492.blog-gold.com/36545630/an-unbiased-view-of-grating-steel-jual