Baja Ringan / Besi Hollow / Metal StudSeiring dengan semakin terbatasnya persedian kayu untuk pemakaian kuda-kuda (kaso) dan rangka (Reng) atap rumah tinggal maka Berkat Maju Bersama mengeluarkan produk subtisusi yang ramah lingkungan, efisien dan ekonomis. Produk subtitusi tersebut adalah Rangka Atap Baja Ringan. Rangka Atap Baja Ringan dari C Steel (Besi/Baja C) terbuat dari bahan Zincalume. Berikut adalah spesifikasi baja ringan yang kami miliki :Baja Ringan & reng:Memiliki ketebalan profil C : 0,70 mm & 0,75 mmSedangkan untuk reng memiliki ketebalan : 0,45 mm dan 0,4 mmSelain itu kami juga memiliki Besi Hollow Plafon Gypsum / PVC , berikut spesifikasi besi hollow kami :Hollow Galvalume :Besi Hollow Rangka Plafon Berbahan Galvalum Dengan Ukuran: 32 X 32 X 0.25 X 4000mmBesi Hollow Rangka Plafon Berbahan Galvalum Dengan Ukuran: 32 X 16 X 0.25 X 4000mm  Metal Stud & U Runner :Metal Stud : 7,5 cm x 0,35 mm x 3 mU-runner : 7,6 cm x 0,35 mm x 3 m  besi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum hollo gypsum hollowbesi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum hollo gypsum hollow besi hollow besi hollo rangka gypsum 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