โพสต์ไฟฟ้า, สายเคเบิ้ล, ไฟฟ้า, หม้อแปลง, เส้น, สายไฟ, อำนาจ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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