Beton landasan steel grating (bagian kanan dan kiri) harus rata atau sama tinggi. Bagian bawah steel grating diusahakan menempel secara sempurna dengan landasan bawah. Arrive at out these days to learn more about our galvanized steel trench grates. We also provide other trench drain procedure factors, such as galvanized steel https://johni420aeg1.answerblogs.com/profile