A carriage bolt, also referred to as a coach bolt, contains a domed or countersunk head, as well as the shank is topped by a …Ukuran lebar beton sendiri dapat disesuaikan dengan panjang steel grating yang akan dipasang. Semakin panjang ukuran sebuah steel grating, maka semakin lebar ukuran landasan beton.STEEL GRATING AIS gelombang sinus digunaka