About grating steel galvanized
Rectangular steel bar stair treads provide a substantial toughness and stiffness-to-fat ratio and are offered by using a serrated area when further basic safety is necessary.Beton landasan steel grating (bagian kanan dan kiri) harus rata atau sama tinggi. Bagian bawah steel grating diusahakan menempel secara sempurna dengan landasan bawah.Beton lan