ฮานอย, ทางรถไฟ, เวียดนาม, เหล็ก, อุตสาหกรรม, อุตสาหกรรมการก่อสร้าง, สะพาน, สถาปัตยกรรม, การขนส่ง, โลหะ, พลบค่ำ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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