tag gambar: gas reservoir, kuantitas gambar: 3
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industri, gas reservoir, Ostrava, besi, peleburan besi, produksi besi, Hut -
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industri, gas reservoir, Ostrava, besi, peleburan besi, produksi besi, Hut -
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pompa, gas, propana, Butana, burung pelatuk, SIHI, udara