Pertama di industri semen, tim inovasi Semen Padang bangun PLTMH berkapasitas 17 kW https://ift.tt/W7QgdR3
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Pertama di industri semen, tim inovasi Semen Padang bangun PLTMH berkapasitas 17 kW https://ift.tt/W7QgdR3
Antara Riau 
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