철강과 기차길 옆 오막살이, Steel by the Railroad

Machine
Focus on SCM440, Machine Structural Alloy Steel
2013년 4월 23일
Machine
SCM415, Cr-Mo Low-Alloyed Steel, Machine
2013년 4월 24일
철강과 기차길 옆 오막살이, Steel by the Railroad
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