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Rectangular steel bar stair treads supply a high toughness and stiffness-to-weight ratio and can be obtained with a serrated surface area when supplemental basic safety is needed.Ukuran lebar beton sendiri dapat disesuaikan dengan panjang steel grating yang akan dipasang. Semakin panjang ukuran sebuah steel grating, maka semakin lebar ukuran landas