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Persiapan: Pertama, pastikan permukaan tempat grating akan dipasang bersih dan rata. Benjolan atau kotoran apa pun dapat membahayakan stabilitas.Fiberglass insulation is made up of woven fiber stands. The fiber strands consist of many hundreds of modest air pockets. The air pockets provide the insulation.Rangka Penyangga: Pasang rangka penyangga me