jagyeonggang
self-hardening steel
acier auto-durcissant ; acier à durcissement automatique ; acier à durcissement par lui-même
자경강은 높은 내구성을 가지고 있습니다.
jagyeonggang-eun nop-eun naeguseong-eul gajigo issseubnida.
Self-hardening steel has high durability.
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