ป่า, เส้น, สนับสนุน, ไฟฟ้า, ลวด, เบา, สายไฟ, พลังงาน, พลังงานไฟฟ้า, เสา, การผลิต
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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