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发明名称
Improvements to automatic-unplugging bushes for thermit welding crucibles
摘要
Meltable plug for an automatic-unplugging bush for a thermit welding crucible, characterised in that it is made of cork, preferably in the form of agglomerated cork.
申请公布号
FR2624775(A1)
申请公布日期
1989.06.23
申请号
FR19870017717
申请日期
1987.12.18
申请人
ALUMINOTHERMIQUE
发明人
JEAN COUPLET
分类号
B23K23/00
主分类号
B23K23/00
代理机构
代理人
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