Serrated : sedangkan jenis ini memiliki permukaan yang bergerigi. Selain itu, kelebihan dari jenis ini anti slip. This minimum width also applies if, at ground level, there are actually obstructions including pipes or electric performs. Together with the reduced minimum width, in these situations, the maximum peak is usually reduced https://grating-surabaya68012.azzablog.com/29926879/the-plat-grating-surabaya-diaries