Simple manual drawing die device
WANG BINGJIE, SONG FENG, LIU JIN, YUAN SHENGCHAO, TIAN YEWEI, CHEN JIAJUN, YANG XIANWEN, LIU XINSHE, GU XIAONAN, WANG YONG, LI KAI, MA LVXIA
Year of Publication 18.12.2013
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Year of Publication 18.12.2013
Patent