videoمحمد نعمتی2021-08-29T09:26:37+03:30 Videos هلدینگ انرژی سپهر video Video project of SIRAF Energy Investment Co. Video project of Dena Petrochemical Industries Video of Sabalan Petrochemical Co. Video of Sepehr Lavan Petrochemical Company Video of Sepehr Energy Holding projects at a glance Sabalan Petrochemical Unit in Operation >