โลหะ, เหล็ก, ด้านอุตสาหกรรม, เนื้อผ้า, แผ่น, โครเมียม, เนื้อสีเทา, โลหะสีเทา
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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